Based on the best selling UNIT-X, our X-STRETCH version adds more squeeze to your sack...it grips the base of your dick and balls while pushing your nuts down low in their ball-bag. It's sleek and super stretchy just like the UNIT-X but with an extra inch of rubbery ballstretching. OXBALLS invented the original COCKSLING, this fucker works the same way but it's slimmer and fits better with no extra bulk. Nothing feels like a sling on your dick, it feels just like when you grip the base of your meat and balls with your hand and squeeze. X-STRETCH grips all of your junk.