LIVE SYSTEM AIR BALL POP UPS REF: 90249 These are very buoyant, durable, air ball pop ups made with Live System Base Mix to ensure they colour and aroma-match our Live System boilies and other products in our successful Live System Range. They have a tough, nuisance fish-proof skin but are pliable enough to be trimmed to achieve the desired buoyancy for optimum rig performance.