The Swimming Kickboard is made of 16.92*12.12*1.29in lightweight durable EVA Foam, soft, flexible and floatable.Do not worry about the fracture during swimming. The Swimming Kickboard is very suitable for children and adults who are just starting to learn to swim in the pool. Develop children's kicking techniques, improve leg endurance, keep the upper body floating, and improve the support ability of the arms. When you feel tired, you can stop and float on the water. The buoyancy of the swimming board is enough to support the weight of body.