Description: 【High Quality Material】Durable PVC swim through rings for summer pools are fun, durable, stable, safety for teens and adults, and can be used long time. 【Easy to Use】Hang the sand bags and buoys on the diving rings, and the diving rings will sink into the water, convenient and easy to play with, improving your swimming ability. 【Underwater Training】 Throw The Swim Through Rings into the swimming pool, teaching your kids underwater swimming or obstacle courses. 【Wide application】Swimming Underwater Diving toys are suitable for swimming pools, diving, beach pools, underwater swimming, diving sports, etc. 【Gift】Underwater toy is the best gift for teens, adults, families, children, and swimming lovers. Teens and kids can enjoy playing with these swimming through rings. Specification: Material: PVC Diameter 80cm/31.50inch Package Includes: As You Choose: 3 Swim Through Rings OR 1 Swim Through Ring(Random Color) Note: Please allow slightly errors due to manual measurement and different monitors.