Material: PP size: 49 * 45cm Color: black Quantity: 1 piece 1. Professional swimming training equipment Our swimming equipment is an interesting swimming tool, which can enhance the rhythm of leg movement, enhance leg strength, correct leg movement, and eliminate crow's feet. The signal reduces the speed of swimmer swimming in the water 2. High quality elastic materials are used for long-term swimming with monomer made of PP materials, which do not match and are not easy to deform, Soft and ultra light materials provide comfort and avoid damage when used for a long time, making you feel comfortable and fast while swimming. Great design and comfortable experience. The soft foot bag puts your feet in a swimming unit, which is the most comfortable swimming experience. Other swimming units may harm, compress, or dirty your feet, and generate saturated body movement, helping to find a sense of balance and exercise the strongest muscles. 4. Easy to use, easy to use, effortless and effortless. Whenever you use olphinkkick to swim like a maid, the suture in the center is a position for advanced control, which is easy to hear and take out and will not rub against eels, because it is a weapon of professional swimmer or ordinary swimmer