Ball Stretcher Kit Black. Super Soft Ball Stretchers are made to safely stretch and elongate the scrotum. The ball stretcher wraps around the scrotum to increase pleasure during sex or masturbation, making you last longer. As you advance with your play you can stack the stretchers for more elongation. For those who want to explore scrotum play to try new experiences, this is a safe sensual way to extend erections and is a kit you can use for solo and couple play. Safe For Your Body: Made from Tantus own unique formula of 100% Ultra-Premium Super Soft Silicone. Easy to clean. Eco friendly, hypoallergenic, hygienic, boilable, bleachable. Dishwasher safe. Smaller Ball Stretcher inner diameter 1.5 inches, width 0.73 inch. Weight: 0.7 ounce. Larger Ball Stretcher inner diameter 1.5 inches, width 1.23 inches. Weight 0.5 ounce. Not recommended for use with Silicone based lubricant. Made in the USA. - video.