Swimming Tubes for kids girls and boys. Get your little swimmer in the water with this Inflatable Swimming Tube Rings.  The inner diameter is about 26 cm, the outer diameter is about 60cm. It is suitable for children for summer vacations pool parties and so on. Kids will love learning how to swim with the help of these rings. They make going to the pool way more fun and you will experience great bonding time with your kids while soaking up the sun. Hit up the pool this summer with these Inflatable Tube Rings and experience how much fun will be had in the water. This ring is not only attractive; it is also more comfortable for little swimmers because it features a smooth inner seam to prevent skin irritation. It is a fantastic way to allow your child to explore their water skills and increase their confidence. It is an all-time favorite Swim Ring that kids will love.