DFD: double braking system for precise and powerful braking Dual control of handle slip under load Click Drag adjustment for more precise settings Multi-disc, carbon washer for DFD CRC: corrosion resistant alloy HDGII: corrosion resistant gears ALC: robust aluminum body, rotor and side panel MSS: mechanical carbon stabilizer Aluminum, two-tone spool with LCS piston Aluminum handle for extra strength when winding Hydro Block water protection For heavy bulentin, panula and in larger models for popping and jigging tuna - big game fishing