No girl will match your rhythm more than this automatic male masturbation stroker cup. Constant stroking motion and unique stretch feature help you enjoy the various stimulation and get rid of the boring single mode. Use lubricant (water-based) to achieve the best experience. Powerful thrusting and deeper insert can cater to all your needs.- Total length 21.5 cm- Internal length- 18 cm- Diameter- 8.4 cm - Power- usb rechargeable- Vibration- 7 modes- Sleeve material- TPE Phthalate-free according to EU regulation REACH