NEO-STRETCH ballstretchers fit and feel amazingthe same shape as old-style neoprene ball-stretchers, same thickness, but made of our super soft stretchy silicone...wont strangle your sack, wear longer for more stretch, more play...NEO-STRETCH keeps those nuts down in their sack...all three styles have a fat lip around the edge so this one will not dig into your sack...unlike neoprene, NEO-STRETCH is rubbery, stretchy and feels like its part of your sack...3 different shapes: TALL is for longer sacks or guys that want one...SHORT fits any sack, even high and tights...ANGLE pushes your balls forward or back, also makes a amazing pusher cockring...Safe with all lubes, this toy will not pinch or cause a burning feel some get using neoprene on their sack, and no possibility of allergy because this is 100% siliconeNEO SHORT is 1.25 shorter ballstretcher will fit any sack and can be stacked as you grow.All are a little under 1 inside diameter, with a slight swell in the center to squeeze you more where you need it most.