The swim flippers is designed of wider fins, the wider it is, the further you can swim. Creative design can help you reduce resistance. So that you can have a powerful and fast experience underwater. is design for swimming training, to build leg strength. Features - -Material:Silicone - Size(XS30-32): 29.80X21.00X15.90cm/11.71X8.25X6.25in -Note:21.0CM,2US,1.5UK,34EU,6.0915Inch - Our snorkel fins are suitable for kids and youth beginners to swim, snorkel, train and dive. - Moderate softness is not easy to get tired and will have a close touching with water and better for training. - This swim training fins with comfortable and safety silicone without rubbing. And the open toes are wide, so that your feet will feel ease in it. - An gift choice for any swimming, snorkeling or diving lover. Give them a little surprise. - Great for all levels of training, teaching, and recreation, easily meet your different needs. Package list: 1 x Pair of Kids