The high performance SE Sport foils will provide more speed and precision control on most outboard and stern drive powered boats. Made of flexible, high strength co-polymer, the foils are rugged enough to stop porpoising and side-to-side movement. Specially engineered crescent shaped planing surface funnels water flow to add thrust, cut planing time and provides both slower 'on plane' and higher 'top end' speeds. A special tracking feature, TURBO TRAC, locks in high speed turns without cavitation (prop blowout) for precise control. suits motors from 40HP to 350HP. Supplied with 6mm x 32mm stainless steel mount bolts, lock nuts and insulators.