Technical details: Material: ABS (Acrylonitrile Butadiene Styrene), PVC, TPR Diameter: 7.3 cm Weight: Approx. 340g Colour: Black Information: Like our other vacuum pump for penis practice, this product is over manual vacuum pump the pressure of the penis. The clear vacuum cylinder makes your penis, while the bigger precise measuring device you know, How much pressure you have pumping. You can a different heat shrink tubing tube sleeving wrap wire input in the shape of the female vulva, women\'s ring the is made from soft, elastic and comfortable TPR (thermoplastic rubber). Good quality and hand control system. Very beautiful penis trainer for you in their free time to use. Package Content 1 slice of vacuum pump. 2 rubber series – Line 1 x Data Please note: * There are works better, if you use with lubricant. * The child prevents the comes into contact with the product. * Please allow variations in the size.