Unique easy-to-use pump utilizes a vacuum seal that increases pressure and blood flow which helps encourage growth in both length and girth for fuller erections and increased size. Track your progress with the measurement marks on the clear cylinder. The soft, stretchy inner sleeve immerses the penis in texture and sensation, and the soft donut at the base of the cylinder creates a perfect airtight seal for maximum pumping action. Pistol-grip lets you increase suction with one finger, and the quick-release trigger immediately removes pressure when you're done pumping. PVC plastic and polystyrene. 8"L x 2 1/2" circumference. This item is non-returnable. You must be 21 years or older to order Sexual Aids.