1. [Light weight and high quality] The swimming hand board is made of polypropylene material, which is light in weight and will not cause additional burden for swimming. There are many drainage holes and waterways in the hand paddle. Low impact force can help you exercise muscles safely.2. [Ergonomic design] The hand swimming paddle adopts ergonomic design, and the right convex surface is aligned with the palm of the hand, which improves the comfort of the hand while swimming, and also increases the traction of the water.3. [Adjustable strap] The strap is made of silicone material, which will not hinder the blood flow in the palm. The length of the shoulder strap can adjust the palm to the most comfortable state. Durable and flexible, which can greatly improve swimming speed.4. [Widely applicable] Swimming paddle can help release more hand strength when swimming. Make swimming easier. Suitable for various postures, such as butterfly, backstroke, breaststroke and freestyle.