Material: SBR Color: yellow, blue Size: Blue: diameter 6mm* outer diameter 10mm* length 4m, Yellow: diameter 6mm* outer diameter 9mm* length 4m Package Included: 1 * Bungee Cord 1 * Swimming Belt 1 * Tie 1 * Mesh Bag [Swim Training Belt] Innovative design, lower body buoyancy, it is an excellent choice for busy people, you can exercise at home [Easy to use] The ring is used for installation. Therefore you can hang your belt on any pole around the pool. The waistband is wrapped with thick foam to make you feel more comfortable. [Opportunity] High quality natural rubber hose with good elasticity. Travel can be carried out, you can use the swimming pools of hotels, motels and cruise ships to swim in the "infinity pool". [Infinity Pool] The swim training belt is specially designed for infinity pools, so you can experience the pleasure of an infinity pool in a small space. Thanks to its quick-drying design, it is easy to clean after each use. [Suitable for All] The waistband is wrapped with thick foam to make you feel more comfortable. It has a belt. Swimming bungee cords are very suitable for adults, children, professionals and amateurs."