Performance VX3 is a gentlemen’s enhancement system that consists of a vacuum chamber, trigger pump, a soft removable airtight pump seal and a soft stretchy c ring. Precision engineered vacuum chamber is clear for viewing progress measuring 2.5 inches wide, 9 inches in total length and accommodating 8.75 inches in penis length. Adjust the intensity with the two-finger pump control handle and disengage with the quick release valve. Bonus stretchy cock ring helps maintain erection and elongate each VX3 experience. Last but not least, we have included a detailed User Safety Manual to help you pump safely.9" Overall Length. Cylinder Is 8.75"L x 2.5"WQuick Safety Pressure Release Valve. Product Instruction & User Safety ManualAdvanced Pull Handle Design Generates More Vacuum Than Bulb Pumps1 Ultrasoft Pump Sleeve & Stay Hard Cock Ring IncludedHigh Impact Polycarbonate. Clearly Etched Measurement Markings