Ouch! Glow in the Dark brings the future of bondage to life. With an authentic bondage look and the added excitement of glow-in-the-dark features, the fluorescent green accents will transform any event into a celebration. The fun truly starts when the lights go out. This cock ring set includes three comfortable and stretchy rings that enhance your sexual performance and offer endless possibilities due to their flexibility. Ouch! Glow-In-The-Dark products need to be charged in sunlight before use in the dark. - Product weight: 7 grams - Waterproof: Yes - Splashproof: Yes - Phthalate free: Yes - Materials: Silicone Specifications Dimensions Small Ring L x W x H: 3 x 3 x 0.3 cm Inner Diameter: 2.2 cm Dimensions Medium Ring L x W x H: 3.5 x 3.5 x 0.4 cm Inner Diameter: 2.7 cm Dimensions Large Ring L x W x H: 4 x 4 x 0.5 cm Inner Diameter: 3.2 cm