Our longest vibrating sound yet, the Cadence Extreme gives you 14 inches of insertable length to play with The flexible silicone is perfect for following the natural curves of your shaft, as well as transmitting the powerful vibration Use the simple one-touch button to cycle through 3 speeds and 7 pulsing patterns to find the sensation that feels best thrumming through your penis. This premium silicone urethral sound is non-porous, phthalate-free, but not compatible with silicone lubricants. Clean this waterproof device with mild soap and warm water. Measurements: 17.75 inches in total length, 14 inches insertable. 5mm or .20 inches in diameter. Material: Silicone, ABS plastic. Color: Black. Note: Requires 1-AAA battery, not included.