Improve your erection with this Fröhle Penis Pomp Professional. This pump features a grip pump that can pump up to 6060 Mbar (millibar). It can significantly improve male potency with regular use. In some cases, it can also help with erectile dysfunction. This penis pump is transparent so you can keep a close eye on how things are progressing. The flexible material makes for a comfortable fit. This model is great for both beginners and more experienced users. The penis pump includes a connecting hose, valve and ball pump and is easy to clean. The sleeve is 18 cm long with a diameter of 4.5 cm.Application:First, apply some water-based lubricant to the penis. Then, pull the cylinder over the flaccid penis and push it against the body. Connect the vacuum pump tube to the cylinder using the tube connector, and create a vacuum by gently operating the grip pump. Be aware that the sensitive skin of the penis needs to slowly adjust to the negative pressure. Open the pressure regulator regularly during use. That can allow the circulation to return somewhat. Then pump again until you reach the desired effect. Use the penis pump for a maximum of 20 minutes and discontinue use immediately if you experience any pain or discomfort.