NEO-STRETCH Ball Stretchers 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 Cock Ring...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% siliconeEO ANGLE is shaped to push your sack forward. can be stacked to bend your sack up and out if you have the balls