Tenga Uni, 5.9 cm, Male masturbators for Men, Want to experience the intense feeling of penetration while you’re masturbating? Tenga Uni masturbator will intensify your pleasure by massaging your penis thanks to a realistic opening. Enjoy a nice stimulation with a wild climax every single time. Characteristics: intensifies your pleasure during masturbation offers a stimulating massage of the penis TPE (thermoplastic elastomer) perfectly adapts to and retains body heat inner stimulation tunnel with ridges stretchy opening adjusts to any size or shape waterproof design can be used in the shower or bath handy and storable travel companion designed specially for men ideal for beginners How to use: This product should be used with a water-based lubricant. Avoid using silicone-based lubricants.