Bigger is better with this Penis Pump. Put it in, pump it up, push it out, and repeat as often as you like. The bulb-operated vacuum can be disconnected and removed without loss of pressure, utilizing quick-disconnect valve technology. The pump comes with a ring at the base that will ensure a tight seal no matter the size of the penis. Phthalate-free and body-safe. Compact Size, Powerful Suction Visually Stimulating Transparent Material Textured Sleeve for Added Stimulation Durable Design Stretch-to-Fit Ring Ensures Tight Seal Air Release Button for Fast, Safe Removal Phthalate-Free, Body-Safe Dimensions Total Length: 8 in. (20.3 cm) Insertable Length: 8 in. (20.3 cm) Width/Diameter: 2.5 in. (6.4 cm)