The Autoboss with Vaginal Sleeve from Size Matters is an incredibly powerful and technologically advanced enlargement device that delivers impressive and sizeable results! This pump comes with an ultra realistic vagina seal for added masturbatory appeal. The Autoboss Electric Pump offers automatic penis pump pressure with an easy to Use On/Off button and a convenient easy release option at the top. The vacuum increases pressure and delivers pleasure with safe, gentle suction and stimulation. Comes with 4 stretchy erection rings to help regulate blood flow, as well as a standard seal. Get your pump on with a little something extra!Measurements: 11 inches in total length, cylinder is 7.25 inches in length and 2.4 inches in diameter.Material: Pump: plastic; Vaginal seal: TPRColour: Black and clearNote: Requires (3) AAA batteries, not included