3 RING CIRCUSProlong & strengthen your erection with soft and stretchy silicone penis rings that gently restrict blood flow for a uniquely sensual experience. Each size delivers a different intensity. SEX LOVE PASSION Soft, stretchy penis ring set VIBRATION Non-vibrating MATERIAL Phthalate & latex free TPE silicone WATERPROOF & SUBMERSIBLE Yes WARRANTY Five Years WEIGHT 0.9 oz. (with packaging: 1.7 oz.) DIMENSIONS Small: Outer diameter: 2", Inner diameter: 1.33", Thickness: 0.37" Medium: Outer diameter: 2.17", Inner diameter: 1.5", Thickness: 0.37" Large: Outer diameter: 2.36", Inner diameter: 1.75", Thickness: 0.37"