Product parameters:Material: siliconeSize: S, M, LS: length 19 cm; width 6, 5 cm, outer diameter 28 cmM: length, 17 cm, width 5.5 cm, outer diameter 24 cmL: length, 15 cm, width 4 cm, outer ; diameter 21 cmColor: pink, blueQuantity: 1 pairPacking List:2 * Hand WeavingProduct :USE OF PRODUCTS: This swim fin can help release more hand strength while swimming and make swimming more labor-saving. The swim training fins are ideal for all water activities, pool training, open water swimming, snorkeling and scuba diving.Beginner meets - This swim fin will help you swim faster and meet the needs of beginners. The swim training fin can also help exercise and strengthen thigh and leg muscles, which is very convenient.Good performance: This swim fin has excellent flexibility. You can use fins to prevent cramps and fatigue. The swim training fin uses soft materials, good performance, easy to use and store.Made of Silicone: This swim fin is made of silicone, which is very comfortable, flexible and safe. And Swim Fin can be easily put in a backpack or suitcase, and Swim Fin is easy to carry.Hydrodynamic Shape and Reusable Design: This swim fin uses a unique hydrodynamic shape and repeatable design, which can largely reduce underwater, practical and is durable and can be used for a long time.