Love ball play? You'll love these ball stretchers from luxury toy brand, Tantus. Made from premium silicone and two to a pack, this stackable ball stretching kit enables you to create custom tug and stretch for the best in personal pleasure. This double pack of silicone ball rings can be worn individually or together, giving you the power to tailor your stretching experience. The smallest ring feels like a deep ball ring during wear, providing only the slightest of stretch, while the larger ring provides a 1. 22 inch stretch. Wear both rings at the same time to achieve a near 2 inch stretch. Small: 0. 75 inch depth, 1. 5 inch inside diameter Large: 1. 22 inch stretch, 1. 5 inch inside diameter Stacked: 1. 97 inch stretch, 1. 5 inch inside diameter For optimum comfort and easy wear and removal, we recommend coating your balls and the inside of theses rings with a good quality water-based lube before use.