Check the listing for details. Oxballs Atomic Jock Tri Squeeze Cocksling - Black Ball Stretcher. Color: Black, Condition: New. Listed at 33.34 USD. TRI-SQUEEZE is everything you love about the TRI-SPORT penis sling but with a built-in ball stretcher at the base. It beefs up your bulge while stretching your sweaty sack. Just like TRI-SPORT, TRI-SQUEEZE is modeled after traditional steel 3-ring penis cage but without all the discomfort and rigid material…no worrying about pinching metals or trying to wrestle a ragin’ boner into a too-tight contraption. TRI-SQUEEZE’s unique design and shape make it one of our most versatile slings. Each ring is a slightly different size so you can choose how you wear it. Wear the ball stretcher side facing you, it’ll push your penis n’ balls up and out for a bulge that’s perfect for filling out a jockstrap or some ass-huggin’ gear.