Perfect for pool tournaments, aquatic games, swimming lessons and more, the Water Sports(R) Swim Thru Rings bring next-level fun to the pool! With this set of collapsible pool rings, you are able to adjust the air chambers for your preferred underwater depth. Don't miss out on ultimate fun in the pool this season with the Swim Thru Rings by Water Sports(R)! FEATURES: Perfect for pool tournaments, aquatic games, swimming lessons and more Set of collapsible pool rings Each ring measures 31" in diameter Adjustable air chambers for changing underwater depth Air chambers are decorated with turtles and fish for fun style