FOR ALL AGES: Designed for swimmers of all ages, the TYR Classic Kickboard is ideal for swim training and aquatic exercise routines. STRENGTHEN SWIMMING: Immobilizes your arms and isolates the legs, making your lower body work harder to improve your kicking strength, technique, and efficiency. GREAT FLOAT: For both professional and recreational users, the TYR classic kickboard is the ideal buoyancy to help you maintain optimal position in the water. DURABLE MATERIAL: Constructed of durable, closed cell EVA foam, this 2-inch thick, chlorine-resistant kickboard won't absorb water and is built to last for extended life and performance in the water. PERFECT SIZE: Traditionally designed kickboard measures 20 x 11.5 inches, providing a large surface area to keep you positioned higher in the water. Durable 20" x 11.5" closed cell EVA foam Built to last Immobilizes the arms and isolates the legs so your body works harder with every kick