Performance VX2 is a gentlemen’s enhancement system that consists of a precision gauge, vacuum chamber, trigger pump, a removable airtight seal and a penis ring. Precision engineered vacuum chamber is clear for viewing progress measuring 2.5 inches wide, 12.25 inches in total length and accommodating 8 inches in penis length. Regulate the amount of pressure with the precision gauge, adjust the intensity with the two-finger, trigger pump handle and disengage with the quick release valve. Bonus stretchy cock ring helps maintain erection and elongate each VX2 experience. Last but not least, we have included a detailed User Safety Manual to help you pump safely.12.25" Overall Length. Cylinder Is 8"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