Popular Pumps Beginner & Intermediate EasyOp Penis Pumps Bgrip Tgrip Zgrip Aero Tyro Advanced & Premium Penis Pumps Master Gauge Maxi Ultima Maxi Premium Ultima Premium Egrip / iPumps / Extenders Egrip EROS 3-Speed iPump LCD iPump Extenders Sleeves & Seals Beginner TPR EROS Premium Realistic Other Best Selling Accessories Cylinders Magic Sleeve Vacuum Gauge Tension Rings Vibration LeLuv Acrylic Cylinder for Penis Pump Untapered 9 & 12 Inch with Female Valve KEY FEATURES: Specially designed to fit comfortably while providing safe and effective vacuum seal No mold seams to irritate the skin, untapered along the entire length 3mm thick high quality, non-irritating, clear medical-grade acrylic; Imperial and metric measuring marks help you track your progress easily Inside width (diameter) are available in sizes from 1.35 to 3.70 inch in a 9 or 12 inch length Quick-release vacuum valve holds the vacuum after the pump is disconnected from the cylinder Our highest quality kits - including the Maxi, Ultima and Primo lines - are compatible with these cylinders without needing any further parts. However, with additional fittings (sold Separately) these replacement cylinders are compatible with all of LeLuv's offerings. NOTE: Male fitting and hose is not included. We offer 3 grades of hose (clear plastic, silicone, and silicone coated) with male fittings. You can purchase them from these links: Clear Hose Uncoated Silicone Hose Slippery Coating Silicone Hose Penis pumping 101: First, the penis should be well lubricated and then inserted into the cylinder. The hand operated pistol grip vacuum pump is attached to the cylinder via the quick release airlock attachment and quick disconnect hose connector. Upon squeezing the pistol grip, a vacuum is created - penis enlargement happens as your penis grows inside the cylinder. While overzealous vacuum pumping does carry some risks, when done carefully, it is a safe way to achieve mild penis enlargement. The most frequent problem is impatience and pumping the penis too hard and fast, stressing the penis. Too much pressure can cause temporary bruising of the penis, water blisters, red pinpricks etc. Therefore, proceed slowly, be patient, and increase the vacuum gradually over an extended period of time. Generally the increases in girth (width) will be larger, and longer lasting. Penis girth (width) is increased using wider cylinders. If you're more concerned about getting increase in length it is suggested that you buy a narrow cylinder. Your penis will get more of a pull in length in a long narrow cylinder, than pulling outward, which increases girth (width). Cylinders of many sizes are sold separately at our eBay store: Safety Feature When using vacuum pumps, one should never proceed to the point where the suction causes pain nor use for more than 10 to 15 minutes continuously. Stop when the penis is only slightly larger than its normal erect size. One of the key safety features for LeLuv's Pump Kits is the included safety release purge valve that allows for a quick release of the vacuum. Anytime you want to release the vacuum, you can do so with this safety valve (located on the Pump - not included in this listing.) For added safety, LeLuv® recommends a Pump with a vacuum gauge. Find Your Diameter The best way to determine which cylinder size is right for you is to measure the circumference of your erect penis. The circumference is the circular distance around your penis. If you do not have a measuring tape to do this, you can also use a string, shoelace or dental floss and wrap it loosely around the thickest part of your penis while in an erect state. Mark the string where it comes together and place the string out flat next to a ruler and measure the distance between the markings. This length is your penis circumference. Once you know your circumference, simply use this chart below to figure out which diameter we would recommend. Your (Erect) Penis Circumference Recommended Cylinder Diameter 4.00 inch (10 cm) 1.50 inch (3.8 cm) 4.70 inch (12 cm) 1.75 inch (4.5 cm) 5.50 inch (14 cm) 2.00 inch (5.1 cm) 6.25 inch (16 cm) 2.25 inch (5.7 cm) 7.00 inch (18 cm) 2.50 inch (6.4 cm) 7.85 inch (20 cm) 2.75 inch (7.0 cm) 8.65 inch (22 cm) 3.00 inch (7.6 cm) 9.42 inch (24 cm) 3.25 inch (8.3 cm) 10.20 inch (26 cm) 3.50 inch (8.9 cm) CONDITION Every item is 100% brand new, safely and discreetly packed with no branding. Always inspect the item for damage before using! We will happily replace anything damaged in shipping. ONLINE PRIVACY This is a private listing and your identity will not be disclosed to anyone. SHIPPING We always ship your products in unmarked packaging, either grey poly envelopes, padded white envelopes, or unmarked box. We also do not manufacture most of our products with retail packaging, which saves shipping costs and waste! GUARANTEE 90-Day, 100% Satisfaction or your Money Back! Specifications Brand LeLuv® Item Number / MPN 200110-000 Color Clear Country of Origin CN Assembled in USA Features Hypoallergenic Diameter Length Material Medical-grade acrylic Powered by Unpowered Travel friendly Yes Type Penis Vacuum Pump Waterproof Yes Weight (net) 12 oz Width Wireless Yes