NEO-STRETCH ball stretchers fit and feel amazing. The same shape as old-style neoprene ball stretchers, same thickness, but made of our super soft stretchy silicone. These NEO-STRETCH ball stretchers won’t strangle your sack. Wear longer for more stretch, more play. Safe with all lubes, this toy will not pinch or cause a burning feel some get using neoprene, and no possibility of allergy because this is 100% silicone.