Oxballs Morph Curved Silicone Ballstretcher BlueMORPH is a thick squishy tube of pure silicone designed to stretch your sack low. The soft material and curve shape morph to fit your nuts and cling to you like a second skin. Made in USA Pure Platinum Cure Silicone Lube safe: water based (recommended), oil based, water silicone hybrid, silicone Cleaning: detergent and hot water, dishwasher, or soak in a diluted bleach water solution.