Bundle of 2 items: LeLuv Maxi Penis Vacuum Pump with Blue Handle & 4 Sizes of Constriction Rings. The LeLuv Maxi penis pump creates an immediate, powerful suction, while the ergonomically designed nylon handle is lightweight and easily used one-handed. It's safety vacuum release valve is easy to operate. We include 18 inches of kink-resistant hose, and our specially-designed Quick-Disconnect Fittings to offer trouble-free pumping sessions. You can even disconnect the hose from the cylinder and it will maintain vacuum! Specially designed to be used with or without any sleeve, the extra-thick clear, seamless, untapered cylinder is graduated in both inches and centimeters up the side. For beginners, it is important to start the pumping process slowly to avoid discomfort. Remember to use the quick release valve if the vacuum becomes too severe. Continue pumping/releasing air until you've found a suitable level of vacuum. The penis should look swollen but should not hurt. Keep an appropriate amount of vacuum on your penis and wait 20 minutes. Once the session is complete, clean the cylinder and any accessory with warm water or arcrylic/silicone-safe cleaner. Let dry before storing.