Upgraded Pool Game- These swim rings toys are reinforced, and the connection port is upgraded to make them stronger and not easy to break. Environment-friendly materials will not deteriorate or corrode in water. Superior materials will be good for kids' health. Creative Design - After assembling the Swim Thru Rings, put the floating rings in the pool. They will stay afloat. so you can go through the ring in just a few seconds. Swim underwater for swim training, children learn to swim…