The O'Brien Radica Kneeboard is the perfect board for teaching kids. Combining a beveled edge with cupped, quad molded fins, this board delivers unrivaled stability to build the rider's confidence and make them immediately feel comfortable on the water. To further assist in the learning process, the Radica features an Aquatic Hook to simplify deep-water starts and eliminate any frustration in learning to get up. Keep it simple. Keep it fun.• Durable, buoyant, and easy to learn on• Rotomolded construction• Quad molded fins enhance the board's tracking for added control• Integrated Aquatic Hook makes it easy to get up the first time and every time• Variable beveled edge• 3/4" EVA pad• 3" padded strap• Dimensions: 49.7" x 20.1" Aquatic Hook simplifies deep-water starts 3/4"" EVA kneepad 3"" padded strap