Innovative Automatic Pump Sucking Masturbation CupMale masturbator cup with latest vacuum pumping technology can mimic the sensation of real oral sex to deliver 360 °deep throat pleasure and climax. With its multiple vibrating and sucking stimulation, this oral sex toy engulfs and kiss your glans gently like your partner's sexy mouth. It inhales deeply and exhale slowly to simulate the squeezing feeling from the throat in a sexy mouth you never experienced.High-quality soft and flexible materialSleeve stroker is made of soft, stretchy TPE material. It provides tight silky-smooth sensation compare with other hard silicone masturbators. The stretchy material accommodates any size without girth issue while provides overwhelming lifelike blowjob sexual penis stimulation.5 Suction & 10 Vibration ModesMale masturbator stroker equipped 2 powerful motors with 5 suction modes and 10 vibration modes. The suction and vibration can be controlled independently from weak to strong, you can find your favorite combination as per your request. It also can be used as penis trainer or penis training tool to prolong sexual endurance. Its booster mode can enter the strongest mode instantly to give you overwhelming experience.Detachable & Easy to CleanMan masturbation cup is detachable. Easy to clean compare with traditional masturbators. To clean up the sleeve stroker just pull out the sleeve gently to wash it completely. Afterwards put the detachable stroker back on the masturbator. (The insertable length is about 4 inches. It simulates oral sex but cannot fully insert a long penis.)