Firefly Rise is a glow in the dark cock ring or ball ring designed with a wide angled base to keep the penis propped upward for easy and prolonged penetration. Made of stretchy, nonporous Thermoplastic Ealstomers TPE for a snug and comfortable fit. Available in three glowing colors! Product dimensions 2.5 inches by 2.7 inches by 1.2 inches. Package dimensions 4.8 inches by 3.6 inches by 1.5 inches. Packaged weight 3.20 ounces. Product material Thermoplastic Elastomers TPE