Spring Ring adds extra zing to indoor and outdoor fun. Use them to give some or your favorite old games an exciting new twist or come up with something completely new and different on your own. No Rules Required for this creative new toy. Constructed with a firm foam outer ring and a stretchy trampoline center fabric, the versatile Spring Rings can be used like a paddle, thrown like a frisbee. They even float. Great for indoors (when used with the dry splash ball) or outdoors.