Spin hooks / jig heads

Quick OverviewThe Savage Gear Carbon49 Corkscrew is a ready-made stinger for large shad lures, designed for secure and fast rigging with excellent hook-up performance. It is ideal for lure anglers looking for a strong, flexible, and reliable system for pike and zander fishing.DescriptionThis stinger is made from Carbon49 coated stainless steel wire, ensuring a very good balance of strength, flexibility, and abrasion resistance. The corkscrew spiral and spike allow neat rigging on larger soft plastics without affecting their action, while the ultra-sharp SG Y-trebles help ensure more secure hook-ups. It is especially suitable for fishing with larger soft lures in situations where you want a stable rig and better efficiency on short predator strikes.FeaturesReady-made rig for larger soft bait and shad luresCarbon49 coated stainless steel wireCorkscrew spiral and spike for quick and secure riggingUltra-sharp SG Y-trebles2 rigs per packThe pack includes 1 Gunsmoke/BLN and 1 Blood Red variantTechnologyCarbon49 wire for a combination of flexibility and high strengthSG Y-trebles / SG Y-trebles for reliable hook-upsCorkscrew system for firm lure fixation without unnecessary damage to the soft plasticSpecificationsBrandSavage GearModelCarbon49 CorkscrewProduct typeStinger with corkscrew spiralMaterialCarbon49 coated stainless steel wirePurposeLarger soft bait and shad luresHooksUltra-sharp SG Y-treblesAccessoriesCorkscrew spiral and spikeColours in the pack1 Gunsmoke/BLN + 1 Blood RedQuantity per pack2 rigsAvailable lengths5,5 cm, 6 cm, 7 cm, 8 cmStrength23 kg, 28 kg and 31 kg, depending on the variantAvailable VariantsVariantSpecification2x1/0 23kg2x size 1/0, strength 23 kg2x2/0 23kg2x size 2/0, strength 23 kg2x1 23kg2x size 1, strength 23 kg2x1/0 28kg2x size 1/0, strength 28 kg2x2/0 31kg2x size 2/0, strength 31 kg2x3/0 31kg2x size 3/0, strength 31 kg1 23kgSize 1, strength 23 kg1/0 23kgSize 1/0, strength 23 kg2/0 31kg 2pcsSize 2/0, strength 31 kg, 2 pcs3/0 31kg 2pcSize 3/0, strength 31 kg, 2 pcsAdvantagesQuick rigging on soft plastic without complicated rig assemblyHelps increase the percentage of landed strikesFlexible and strong wire for more natural lure actionMultiple sizes and strengths to suit different shadsReady to use straight out of the packNoteAvailability of certain variants may vary depending on stock levels. Before purchasing, check the desired hook size and strength according to the lure you use.

Quick OverviewThe Savage Gear Carbon49 Double Stinger is a high-quality double stinger for soft lures and jig heads, designed for anglers who want better hook-up rates. The flexible coated Carbon49 wire, sharp SG Y-trebles, and practical accessories make it an excellent choice for predator lure fishing.DescriptionThis stinger is designed for situations when fish short-strike the lure and miss the main hook. It is precisely assembled on coated Carbon49 multi-strand wire, while the SG Y-trebles ensure secure penetration and reliable fish retention during the fight. Thanks to the silicone tube on the loop, split ring, and included bait spike elements, mounting on jig heads and soft lures is quick, neat, and secure. It is suitable for fishing for pike, zander, and other predatory fish with soft lures and jig rigs.FeaturesDouble stinger with SG Y-trebles already mountedCoated Carbon49 wire provides an excellent balance of flexibility and durabilitySilicone tube on each loop helps secure attachment to the jigThe trace is pre-assembled with a split ringBait spike elements are included in the packageFinish colors: Gunsmoke (black nickel) and Blood Red, 1 piece of each color per pack2 pieces per packTechnologyCarbon49 coated wireSG Y-treblesSpecificationsBrandSavage GearModelCarbon49 Double StingerTypeDouble stinger for lures and jig headsMaterialCoated Carbon49 multi-strand wireHooksSG Y-treblesLengthUp to 15 cm, depending on sizeColorGunsmoke (black nickel) and Blood RedAccessoriesSplit ring, silicone tube, bait spikesPackaging2 pcsPurposeFor upgrading soft lures and jig rigsAvailable VariantsVariantSpecification#1 10.5cm 16kg 2pcsHook size #1, length 10,5 cm, breaking strain 16 kg, 2 pcs#1/0 11.5cm 16kg 2pcsHook size #1/0, length 11,5 cm, breaking strain 16 kg, 2 pcs#2/0 13.5cm 23kg 2pcsHook size #2/0, length 13,5 cm, breaking strain 23 kg, 2 pcs#3/0 15cm 23kg 2pcsHook size #3/0, length 15 cm, breaking strain 23 kg, 2 pcsAdvantagesIncreases hook-up rates when predatory fish make short attacksFlexible wire allows for more natural lure actionReady to use without additional rig assemblyMultiple available lengths and breaking strains for different soft lure sizesReliable construction for demanding lure fishingNoteAvailability of individual variants depends on stock levels. After use, it is recommended to rinse the tackle with fresh water and dry it for a longer service life.

Short overviewThe Illex Nitro Shad Head is a specialized jig head for soft lures, developed for a natural presentation and better control on the drop. Thanks to its offset center of gravity and fish head shape, it is especially suitable for predator fishing in freshwater and saltwater, including vertical fishing.DescriptionThis Illex jig head is designed for optimal performance with the Nitro Shad soft lure, but it can also be used very effectively with other soft lures with pronounced vibrations. The specially balanced shape and center of gravity allow for a gliding descent, natural bottom landing, and more realistic lure action during retrieves, bottom hopping, and vertical presentation.FeaturesThe head shape imitates a fish head for a more convincing presentation.The offset center of gravity positioned lower enables a gliding descent.Natural and stable bottom landing.Balanced design for realistic lure action.Especially effective for vertical fishing.Compatible with Nitro Shad and other soft lures.The pack contains 2 jig heads.TechnologyOffset center of gravity for a smooth descent and more natural bottom contact.Fish head design for improved hydrodynamics and a more attractive silhouette.SpecificationsBrandIllexModelNitro Shad HeadTypeJig headPurposeSoft luresPresentationGliding descent and natural bottom landingEspecially suitable techniqueVertical fishingPack2 pcsColorNaturalAvailable weights7 g, 10 g, 14 g, 21 g, 28 g, 35 gAvailable variants7 g - 2 pcs10 g - 2 pcs14 g - 2 pcs21 g - 2 pcs28 g - 2 pcs35 g - 2 pcsAdvantagesProvides a more natural presentation of the soft lure.Improves control on the drop and when working near the bottom.Helps maintain a stable lure position during presentation.Suitable for different depths and fishing conditions.An excellent choice for targeted fishing for zander, pike, and seabass.NoteAvailability of individual weights may vary depending on stock levels. Before purchasing, check the selected variant and compatibility with the size of your soft lure.

Short OverviewDaiwa Bassers Worm Hook WKY is a quality hook for soft lure fishing, specially designed for Wacky and Texas rigs. Thanks to its very sharp point and strong construction, it is an excellent choice for fishing for zander, pike, and other predators.DescriptionThis model was developed for anglers looking for a reliable hook for precise soft bait presentation in finesse and predator fishing approaches. The design enables efficient hooksets and secure fish retention during the fight, and it stands out especially when used with worms, creature baits, and other soft lures for Wacky and Texas rigs.FeaturesBarbed hook for secure fish holdingSuitable for Wacky and Texas rigsVery sharp point for fast penetrationStrong construction for predator fishingExcellent compatibility with soft luresSuitable for zander and pike fishingTechnologySaqSas sharpening technology for exceptional point sharpness and easier hooksetsSpecificationsBrandDaiwaModelBassers Worm Hook WKYHook typeBarbed hookPurposeWacky and Texas rigsTechnologySaqSasMaterialHigh-carbon steelColorBlackTarget speciesZander, pikeAvailable VariantsGr. 2Gr. 4AdvantagesFast and efficient hooksets thanks to the very sharp pointReliable fish retention during the fightAn excellent choice for modern predator techniques with soft luresPractical use across multiple rig typesA reliable Daiwa model for more demanding anglersNoteAvailability depends on the selected variant. Photos are for informational purposes, and it is recommended to choose the size according to the lure and target fish species.

Short OverviewDaiwa D' Jig Head Round is a classic round jig head designed for modern lure fishing with soft baits. It features a sharp and strong hook, stable action in the water, and a wide choice of weights and sizes for adapting to different fishing conditions.DescriptionThis jig head is an excellent choice for targeting predators such as zander, pike, perch, or seabass, depending on the selected size and weight. The round head shape allows for a natural fall of the soft lure, good bottom contact, and versatile use in both slower and more active retrieves, in both freshwater and saltwater.FeaturesClassic round jig head for versatile useSharp and strong hook for secure hooksetsSuitable for different soft baitsAvailable in multiple hook sizes and weightsGood balance of lure control, casting distance, and presentationSpecificationsBrandDaiwaModelD' Jig Head RoundProduct typeJig head with integrated hookHead shapeRoundHook sizes2/0, 4/0, 6/0, 8/0Weight range5 g - 25 gIntended useLure fishing with soft baitsApplicationFreshwater and saltwaterAvailable Variants2/0 5 g2/0 7,5 g2/0 10 g2/0 15 g2/0 20 g4/0 5 g4/0 7,5 g4/0 10 g4/0 15 g4/0 20 g6/0 10 g6/0 15 g6/0 20 g6/0 25 g8/0 10 g8/0 15 g8/0 20 g8/0 25 gAdvantagesEasy selection of the right weight for depth and current strengthNatural lure action during the drop and retrieveReliable hook for effective hooksetsVersatile use for different predatory speciesWide choice of variants for precise tackle adjustmentNoteAvailability of individual variants may vary depending on stock levels. After use in the sea, rinsing with fresh water is recommended for a longer service life.

Short OverviewThe Drennan E-SOX Dropshot Hook is a specialized hook for dropshot fishing for predatory species such as perch and zander. It features a micro barb, a wide gape, and an extremely sharp needle point for secure hooksets and a natural lure presentation.DescriptionThis hook was developed for precise dropshot rigs and effective presentation of soft lures. The out-turned eye helps maintain the correct hook angle on the leader, while the wide gape securely holds lures from 4 to 10 cm in length. In addition to soft lures, it can also be used with worms and fish baits, making it a very versatile choice for modern spinning and finesse fishing.FeaturesDropshot hook with micro barbWide gape for better presentation and secure lure holdingSuper sharp needle point for fast and reliable hooksetsOut-turned eye for optimal positioning on a dropshot rigSuitable for soft lures from 4 to 10 cmCan also be used with worms and fish baitsPack contains 10 hooksTechnologyMade from super high-carbon steel for an excellent strength-to-fineness ratioNeedle point tip for easier penetration on the strikeWide gape shape for better hooking and lure stabilitySpecificationsBrandDrennanModelE-SOX Dropshot HookTypeDropshot hookMaterialSuper high-carbon steelBarbMicro barbShapeWide gapePointSuper sharp needle pointEyeOut-turnedPurposeDropshot fishingRecommended lure size4–10 cmUseSoft lures, worms and fish baitsPack10 hooksAvailable VariantsSize 1Size 2Size 4Size 6AdvantagesPrecisely designed for the dropshot techniqueHelps achieve a high hook-up rateHolds soft lures excellently without impairing their actionVersatile use for lures and natural baitsMultiple sizes for adapting to different conditions and target fishNoteAvailability of specific sizes may vary. Before fishing, check local regulations regarding the use of barbed hooks.

Quick OverviewThe DAM MADCAT A-Static Treble 6x #3/0 is an extremely strong treble hook designed for catfish fishing and other situations where maximum reliability is required. Thanks to its A-Static coating, 6X construction, and very sharp points, it is an excellent choice for anglers seeking secure hooksets and a firm hold on the fish.DescriptionThis MADCAT treble hook was developed for demanding conditions and targeting large predatory fish, especially catfish. It is suitable for rigs with large baits, lures, and fishing with dead or live bait, where strength, resistance to bending, and a discreet presentation in the water are of key importance.Features6X ultra-strong treble hook with barbsVery sharp, chemically sharpened points for fast penetrationRubber-coated finish for reduced reflections and a more discreet presentationVery strong construction for big fish and heavy loadsMade from high-quality Japanese steelMatte black finishTechnologyMADCAT A-STATICAnti-static coating to minimize magnetic attractionSpecificationsProductMADCAT A-Static Treble 6xSize#3/0TypeTreble hook with barbsStrength6XMaterialHigh-quality Japanese steelCoatingA-Static, rubber-coated anti-static finishCharacteristicsUltra sharp, very strong, anti-static, rubber coatedPurposeCatfish and big fish fishingBrandDAM / MADCATSKU/MPN55958AdvantagesAn excellent choice for demanding catfish fishingHigh resistance to bending and heavy loadsMore discreet presentation thanks to the A-Static coatingReliable hooksets and secure fish holding during the fightNoteProduct availability depends on stock status. The coating may gradually wear during use, and it is also recommended to check local regulations regarding the use of barbed hooks.

Quick OverviewDelalande TP Rondes H6 0,60 g is an ultralight round jig head designed for precise presentation of small soft plastic lures. It is equipped with a sharp hook with a barb and is an excellent choice for trout, chub, perch, and other predators that require a finesse approach.DescriptionThis model was developed for ultralight spinning and finesse techniques when natural presentation, a slow fall, and good lure control are needed. The round head shape contributes to stable action in the water, while the low weight of 0,60 g allows for a subtle approach in still waters, canals, streams, and lightly flowing rivers. It is ideal for micro soft plastics and small soft lures when retrieved slowly, hopped along the bottom, or allowed to sink gently.FeaturesUltralight round jig head for ultralight fishing0,60 g weight for a discreet and natural presentationH6 hook with barb for more secure hookingSuitable for small soft plastic lures and micro presentationsStable and predictable lure action in the waterTechnologyPrecision-cast round head for a balanced fall and better presentation controlSharp hook with barb for reliable fish retention during the fightSpecificationsBrandDelalandeModelTP Rondes H6TypeRound jig headWeight0,60 gHook SizeH6PurposeUltralight and finesse fishingApplicationMicro soft plastics and small soft luresAdvantagesEnables a very natural presentation in demanding conditionsExcellent control of small lures during a slow retrieveSuitable for cautious fish and clear watersCompact and effective for everyday UL spinningNoteProduct availability depends on stock status. The information is provided by the manufacturer, and minor variations in design or markings are possible.

Quick overviewDelalande TP Rondes H1/0 1,5 g is a round jig head designed for precise and natural presentation of soft lures. It is an excellent choice for anglers looking for a light rig for a finesse approach in shallow waters and slower currents.DescriptionThis jig head is designed for stable action and an even lure fall, which is especially important when fishing for perch, chub, and trout. The round head shape helps provide a natural presentation, while the H1/0 hook with barb ensures reliable hook-ups and secure holding of the soft lure during casting and retrieval.FeaturesRound jig head for stable and balanced presentation1,5 g weight for light and sensitive finesse rigsH1/0 hook with barb for more secure hook-upsSuitable for soft lures such as shads, worms, and creature modelsNatural lure fall with good control during retrievalLure keeper helps keep the soft lure in placeSpecificationsBrandDelalandeModelTP RondesWeight1,5 gHook sizeH1/0Hook typeWith barbHead materialLeadColorNatural lead greyPurposeSoft luresSKU03181015AdvantagesEnables fine and precise lure presentationGood hook penetration when fish strikeSuitable for light spinning and finesse fishingEasy to pair with different soft luresA reliable choice for fishing in shallow waters and slower spotsNoteThe product is available as a single variant. After fishing, it is recommended to rinse it and store it in a dry place, and to check local regulations regarding the use of lead.

Quick OverviewDelalande TP Rondes H2 4 g is a round jig head designed for the precise presentation of soft plastic lures in spinning fishing. Thanks to its balanced shape and quality hook, it is an excellent choice for anglers looking for a natural lure fall and reliable hooking.DescriptionThis jig head model was developed for versatile use with small and medium soft plastics, especially when stable presentation and good control during retrieval are required. The round head shape allows for natural lure action, and according to available data it is also suitable for fishing in stronger current, making it a useful addition for targeting predatory fish such as zander, chub, trout, and other species that respond to soft lures.FeaturesRound jig head weighing 4 gNatural fall and stable presentation of the soft plastic lureQuality hook with barb for more secure hookingSuitable for small to medium soft plastic luresGood control during retrieval in calmer water and stronger currentStrong and durable constructionSpecificationsBrandDelalandeModelTP Rondes H2Weight4 gHead TypeRound jig headPurposeSpinning fishing with soft plastic luresHookWith barbConstructionStrong and durable bodySuitable forFishing in stronger currentProduct code031824AdvantagesProvides more natural action and fall of the soft plastic lureHelps with more precise retrieval and better presentation controlReliable hook increases security when hooking fishVersatile use in different spinning situationsA good choice for fishing in both running and still watersNoteProduct availability may vary depending on stock levels. For additional technical information and confirmation of compatibility with specific soft plastics, it is recommended to check with the manufacturer or retailer.

Short OverviewDelalande TP Rondes H2 2 g is a lightweight jig head for soft lures, designed for natural presentation and controlled retrieval in light and ultra light spinning. It is especially suitable for perch and trout fishing when a subtle lure action and slower movement in the strike zone are needed.DescriptionThis round head model allows for stable sinking and natural lure movement in the water. The H2 buoyancy profile further enhances the attractive presentation, making it an excellent choice for fishing with smaller soft plastics in calmer waters, canals, lakes, and slower river flows. Delalande TP Rondes H2 2 g stands out particularly in a finesse approach, when fish are looking for a subtle and convincing action.FeaturesRound jig head for even sinking and stable presentation2 g weight for light and ultra light spinningNatural soft lure action in the waterSuitable for perch and trout fishingA good choice for smaller soft plastics and finesse techniquesTechnologyTP Rondes round head design for balanced lure actionH2 buoyancy profile for more natural behaviour in the waterSpecificationsBrandDelalandeModelTP Rondes H2Weight2 gMaterialHigh-density foamHead ShapeRoundProfileH2PurposeSoft lures, light and ultra light spinningRecommended Fish SpeciesPerch, troutActionNatural lure swimming actionAvailable VariantsNatural – 2 g, natural color patternFire Tiger – 2 g, fire tiger color patternSmelt – 2 g, smelt color patternAdvantagesEnables a very natural and subtle presentationExcellent control during slow lure retrievalSuitable for targeted lure fishing for perch and troutAn excellent option for a finesse approach and smaller soft plastic luresNoteVariant availability may vary depending on stock levels. Please check the current offer and product specifications before purchase.

Short OverviewThe Delalande TP Rondes H4 5 g is a round jig head designed for precise presentation of soft lures in spinning. With a #4 hook and a weight of 5 g, it is an excellent choice for anglers looking for stable soft bait action and secure hook-ups.DescriptionThis jig head is designed for the natural presentation of soft lures and efficient coverage of different water layers. The round head shape provides a balanced fall and good control during retrieval, making it suitable for light and medium-light spinning, especially when targeting perch, trout, and zander with soft baits.FeaturesRound jig head for a stable fall and more natural lure action5 g weight for precise casting and depth control#4 hook size for smaller and medium soft luresSuitable for soft baits in various spinning techniquesReliable construction for use in freshwater and saltwaterSpecificationsBrandDelalandeModelTP Rondes H4Weight5 gHook size#4Head shapeRoundPurposeSoft lures / soft baitsAdvantagesAllows more precise soft bait presentationGood balance between weight and sensitivity during retrievalA practical choice for light spinningEasy to match with smaller soft luresNoteProduct availability may vary depending on stock status. We recommend checking jig head compatibility with your lure dimensions before ordering.

Quick OverviewDelalande TP Rondes H4 4 g is a round jig head designed for precise presentation of soft lures in light and ultra light spinning. Thanks to the #4 hook and the shaped soft bait keeper, it ensures stable presentation and secure bait hold during fishing.DescriptionThis jig head is an excellent choice for anglers looking for a reliable and versatile rig for smaller soft baits. The round head shape allows a natural lure fall, good bottom contact, and precise casts, making it suitable for a finesse approach, light spinning, and UL fishing in canals, lakes, and slower river flows.FeaturesRound jig head for universal and natural presentation4 g weight for light and controlled spinning#4 hook sizeShaped soft bait keeper for secure lure attachmentEnables precise casting and stable lure controlSuitable for light and ultra light fishingSpecificationsBrandDelalandeModelTP Rondes H4TypeRound jig headWeight4 gHook size#4Lure keeperShaped keeperPurposeLight fishing, ultra light (UL) fishingBenefitsNatural soft bait action thanks to the round head shapeMore secure lure hold during casting and retrievalGood control in slow and moderately slow retrievesA practical choice for predator fishing with smaller soft luresReliable performance for everyday spinningNoteProduct availability may vary depending on stock levels. It is recommended to choose a soft bait of the appropriate size to ensure optimal presentation and hooking.

Short OverviewThe Delalande TP Rondes H4 1 g is a classic round jig head designed for the precise presentation of smaller soft baits. It is an excellent choice for ultralight spinning, a finesse approach, and fishing in shallow or calmer waters where natural lure action is important.DescriptionThis jig head, weighing 1 g and fitted with an H4 (#4) hook, ensures stable casting, reliable sink rate, and good contact with the lure during retrieval. The round head shape makes it a universal solution for various types of smaller-profile soft baits, such as shads, twisters, and finesse models. It is recommended for ultralight spinning when you want a sensitive presentation and controlled retrieval.Features1 g weight for sensitive presentation in shallow and calm watersH4 (#4) hook size for secure hooksetsClassic round jig head for universal useStable casting and reliable lure sink rateSuitable for the precise presentation of smaller soft baitsRecommended for ultralight fishingSpecificationsBrandDelalandeModel nameTP Rondes H4 1 gTypeRound jig headWeight1 gHook sizeH4 (#4)MaterialLead jig headPurposeUltralight spinningAdvantagesNatural and precise presentation of small soft baitsUniversal round shape for a wide range of applicationsSuitable for a finesse approach and sensitive retrievalA good choice for trout, chub, perch, and similar predatory fishNoteProduct availability depends on stock levels. Photos are for informational purposes, and before purchase we recommend matching the weight and hook size to the selected lure.

Quick OverviewThe Delalande TP Rondes H6 1gr is a round jig head designed for precise presentation of smaller soft lures in ultralight and finesse fishing. The light weight of 1 g allows for a natural lure fall and good control in shallow water, canals, streams, and calmer parts of rivers and lakes.DescriptionThis model is especially suitable for fishing for perch, chub, trout, and other cautious predators that require a discreet and natural presentation. The round head shape contributes to the stable action of the lure, while the H6 hook size matches micro and smaller soft lures well for a finesse approach, light spinning, and slower retrieves along the bottom or through the mid-water layer.FeaturesRound jig head for balanced and natural lure presentation.1 g weight for ultralight spinning and finesse techniques.H6 hook size suitable for small soft lures.Good sink control in shallow and calmer waters.Suitable for precise presentation of micro soft lures.Quality Delalande craftsmanship for reliable performance on the water.SpecificationsBrandDelalandeModelTP RondesWeight1 gHook sizeH6Head shapeRoundAdvantagesProvides a subtle presentation for cautious fish.An excellent choice for small soft lures and light tackle.Easy to use in streams, rivers, and lakes.Suitable for fishing in shallow water and slower currents.Offers a good balance between sensitivity and lure control.NoteProduct availability depends on stock status. Photos are for illustration purposes only, and the manufacturer may make minor technical changes without prior notice.

Short overviewThe Delalande Micro TP Ronde H3/0 5 gr is a round jig head designed for precise and natural presentation of soft lures. The 5 g weight and size 3/0 hook make it an excellent choice for lure anglers seeking reliable control and secure hooksets when targeting predatory fish.DescriptionThis model is especially suitable for spinning with soft lures approximately 7–10 cm long, when a stable sinking path and good guidance through different water layers are needed. The round head shape allows universal use, whether you fish with a straight retrieve, bottom hopping, or slower presentations in freshwater and saltwater.FeaturesRound jig head for a stable drop and natural lure action.5 g weight for a good balance between sensitivity and control.Size 3/0 hook for secure penetration and reliable fish retention.Suitable for soft lures 7–10 cm long.Good lure keeper on the head for stable rigging of the soft lure.Universal application in various lure fishing conditions.SpecificationsBrandDelalandeModelMicro TP RondeTypeRound jig headWeight5 gHook size3/0Recommended soft lure length7–10 cmProduct code0318305AdvantagesProvides a natural and stable presentation of the soft lure.Helps with precise lure control and better bottom contact.A practical choice for zander, pike, and other predatory fish.Universal shape for a wide range of spinning techniques.NoteProduct availability is subject to stock status. After use in saltwater, rinsing with fresh water and drying are recommended for a longer service life.