Enjoy the underwater challenge of the Diving Masters Torpedo Swim Hoops! This pack includes 2 28 inch wide rings, each perfectly weighted to float upright in the water. Submerge the Swim Hoops in water for an instant underwater obstacle course! The Diving Masters Torpedo Swim Hoops are bright yellow and blue, so they’re easy to spot in the pool. Just toss them in, then practice coordination and swim skills by swimming in and out of them.