HO Sports Proton Kneeboard w/Powerlock StrapThe HO Sports Proton Kneeboard is designed for maximum comfort, control, and smooth performance on the water. Its PowerLock single locking knee strap ensures a secure, one-size-fits-all fit, while the surf-inspired shape and deep tracking channels deliver stable landings and precise wake cuts.Features Easy-Up Handle Hook; Surf Inspired Shape; Retractable Fin System; Deep Tracking Channels for Stable Landings; PowerLock Single Locking Knee Strap;