Prepare yourself for bigger, thicker erections with Rock Solid's Manual Penis Pump. This pump comes with three interchangeable round silicone and one vulva sleeve for whatever tightness and feel is desired. The clear tube allows you to see your growth with each pull of the lever.Features Creates Thicker, Harder Erections Clear Vacuum Cylinder 3 Soft Silicone Sleeves for Airtight Seal 1 ULTRASKYN Vulva Sleeve Easy Pull Handle Air Release Button for Fast, Safe Removal Phthalate-Free, Body-Safe Dimensions Total Length: 8 in. (20.3 cm) Insertable Length: 7.25 in. (18.4 cm) Unstretched Inner Diameter: 2.28 in. (58 mm) Circumference: 6.5 in. (16.5 cm)