This item is well made of closed cell EVA that won't absorb water.It is widely used in beach and indoor pool, which is suitable for adults and children. Just give your child a solid swim foundation with this A-shaped float device which will help your child get used to being in the water and develop essential swimming skills. Feature - Color: Yellow. - Material: EVA. - Size: About. 43 * 33 * 3.5 cm / 16.9 * 13.0 * 1.4 inch (L * W * H). - Made of durable waterproof EVA foam, will not absorb water. - Designed to help children learn to swim and provide confidence in water. - design base on human body features to decrease the pressure between body and kickboard when swimming. - for beginners learning swim.