The Liquid Force Wake Surf Edge will make a small wake bigger and turn a big wake into a tsunami! Teach your old boat some new tricks! The Wakesurf Edge helps you get the best surfing performance out of your boat. Adjustable design lets you decide! Shift the position of the Wakesurf Edge on the fly to create deeper pockets or a longer trail with more thrust. New or old boat, the Wake Surf Edge will increase your wake and increase your wake surfing fun! HUGE water displacement wing for maximum wave height! The BIGGEST Wake Shaper face (14 "x 18" = 252sq "). Patented concave water channeling wing, super powerful suction cups! Made with rustproof and FLOATING materials! Recommended for boats 21 'or longer, with motor from 325 hp or higher and Sumo water ballast system Nose-down level cargo boat for visibility and a long trail.