The VX9 Advanced Auto Penis Enhancement System brings engorgement and heightened sensitivity to your penis. It comes complete with an airtight cylinder, silicone tubing, an intuitive automatic power pump, and a quick release valve for your peace of mind. The cylinder is also detachable if you're seeking to hold the suction while you play. Featuring our Nterchange systemThe VX9 Auto Penis Pump is compatible and interchangeable with other Nterchange System compatible Performance and Temptasia pumping accessories to customize your experience and sharing of your Blush product with you partner. It’s easy to assemble, easy to use, and easy to clean. Enjoy peace of mind with responsibly made products by Blush, Makers of quality, thoughtful sexual wellness products since 2007. Requires 3 AA batteries (not included).9 Inch Length x 2 Inch WidthNterchange System Compatible. Perfomance & Temptasia Pumps & Accessories In Our Nterchange Systems are CompatibleAutomatic Power Pump Requires 3 AA Batteries, Not IncludedOn/Off Button and Suction Release Button ControllerBlack Silicone Tubing