Material: Swimming paddles are made of PP and high-quality silicone, which is light in weight. Does not bring extra burden to swimming Size: 13.6x19.5 CM, it's the size that fits most people's hands, don't worry color: orange product includes: 1pair of Swimming Hand Paddles Scientific Design: Ergonomically designed with many drainage holes, low impact allows you to build muscle and improve swimming speed Easy to put on and take off: Just put your hand into the silicone band, the silicone band will be elastic and fixed; hands will not come loose, comfortable to wear, just pull it out Versatile: One size unisex design, lightweight, comfortable and easy to use, suitable for indoor pools and outdoor water training