Used Hydro Slide Revolution Knee Board (some flaws on strap) – cssportinggoods
wake shaker knee board in great condition | eBay
O'BRIEN Modified 55" SURF BODY KNEE BOARD WATER SKI OBRIEN Tournament 2000 | eBay
JUSTOOP Kneeboard Water Sport with Adjustable Velcro Strap, Knee Board for Knee Boarding, Waterboarding, Knee Surfing, Kneeboard with Hook for Kids and Adults, Black - Yahoo Shopping