BOOMERANG is a soft rubbery multi-play cockring/ball ring.It's made from our Plus+SILICONE blend that feels so warm and slick — it 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.