Male?Vacuum?Pump?Electric Pens Pumps For Men Vacuum Pennis Pump

About this item Penis Enlargement - The rhythmic negative pressure fluctuations make the penis expand causing the blood vessels in the corpus cavernosum to dilate and blood flow to increase resulting in a gradual lengthening and erection of the penis. Users can also improve their own psychological conditions and enhance their self-confidence. 4 Suction Intensities - The pump has 4 pressure levels to gradually train the erection function of the penis. Beginners can start from setting 1 do not use the strongest negative pressure directly. Using Guidance - Easy operation with 3 buttons. Connect the product correctly according to the user manual first and then select the pressure setting. When the erection reaches the desired level the pressure in the cylinder can be released through the VALVE button. Note: If the altitude in your area is higher than 1000 meters please reset the air pressure to zero before using (after starting the pump long press the minus key until the initial value is 0 ). Material & Size - The main material of penis enlargement device is Silicone ABS. Cylinder Size: 20cm / 8' in length 20cm / 8' in circumference. Came with 3 sizes of silicone base rings.