The Performance Clear VX9 Auto Penis Pump has an intuitive Automatic Power Pump! The crystal clear cylinder is air tight and comes with silicone tubing. Made of Body Safe materials and contains No Fragrances or Phthalates, Paraffins, or Latex. An easy On/Off button and suction release button controller. SIZE - 9 Inch Length x 1.75 Inch Width. The VX9 Auto Penis Pump is compatible and interchangeable with other Performance pumping accessories. It’s easy to assemble, easy to use, and easy to clean. Requires 3 AA batteries (not included).