360 Athletics Flexible Diving Rings &ndash; 6&rdquo; Diameter, Vinyl, Weighted, Green &ndash; Single Ring SINGLE GREEN RING  360 Athletics flexible diving rings are weighted and brightly colored for visibility on the deck or at the bottom of the pool. QUALITY CONSTUCTION  Each flexi-ring is moulded vinyl so there is no rusting, points that can break down, paint to chip off or pieces to lose. IDEAL SIZE AND SHAPE Rings are 6 inches in diameter for easy grasping by young children. RIBBED RINGS  Excellent grasping and gripping qualities tossing or retrieving in or out of the water. SAFE TO USE  These rings function as a teaching aid or for recreation for all ages with adult supervision.