4-Piece Pool Essential Toy Bright and Colorful Diving Rings Will Attract Your Kids Throwing and Chasing in the Pool Different Color Designs Allow for Enhanced Water Play Fun Underwater Swimming Rings for Kids to Use Every DayThese swimming pool diving rings are made of durable non-toxic plastic material, they are very durable, unbreakable and non-corrosive, don't worry about hurting your kids little hands when playing.Great for swimming and pool diving training.  It is a great training tool to encourage children to swim and be confident in diving underwater. Diving and Retrieving, simple and effective for building swimming skills. Great incentive for beginners.Dive Quickly and Easily Retrieve These plastic pool rings are a great weight for quick diving, standing right on the bottom of the pool, 4 brightly colored rings are easy to see underwater so you can easily catch and learn swimming and diving skills faster.The perfect diving rings to increase fun in the water increase the fun and joy in the pool or in the bathtub with your kids. For adults and parents, it has numbers as an incentive to play to collect more points for the winner.  It is also a perfect summer gift for children, grandchildren, children, boys and girls, and swim learners.Great for swimming training: diving and retrieving, building swimming skills.Great for diving speed and agility training, which can submerge and stand at the bottom of the pool. Great for teaching kids how to dive!Recommended for children ages 5 and up!