Tenga Original Vacuum Cup Extra Strong, 15.5 cm, Male masturbators for Men, Discover all the benefits of male auto-eroticism. The Tenga Original Vacuum Cup Extra Strong masturbator will intensify the penis massage experience and can also help practice sexual stamina. Characteristics: intensifies your pleasure during masturbation offers a stimulating massage of the penis for intense stimulation of the penis stimulation through negative pressure simulating suction adjustable suction inner stimulation tunnel with ridges perfectly adapts to and retains body heat handy and storable travel companion can be used in the shower or bath lubricated for immediate use TPE (thermoplastic elastomer) plastic ideal as a gift How to use: Follow the instructions provided. This product should be used with a water-based lubricant. Avoid using silicone-based lubricants.