BOOMERANG is a soft, rubbery multi-play cockring/ball ring. It's made from our Plus+SILICONE blend that feels so warm and slickit is velvety smooth and squishy but firm enough to grip your shaft and stretch your sack. The unique design creates a "spring loaded" effect that pushes down on your balls like a ballstretcher but with a rubbery cockring holding it in place. BOOMERANG can be worn as a folded, stacked cockring, cockring+tugging ballstretcher, or double-stacked push-down ballstretcher. We based the shape of the two rings on our ZOID, a cockring design with a flatter bar shape bottom that gives more lift and bulge to your junk. BOOMERANG doubles that lift and bulge, 2- rings (one smaller/tighter, one regular size) ...more options, more ways to play.