The internal structure of the masturbation cup is very ingeniously designed to provide a variety of different stimulations, thus bringing a pleasurable experience similar to real sexual intercourse. Masturbation cups are usually used by singles or couples when they are separated, and can also be used as a tool for training sexual techniques. Using a masturbation cup can bring you real pleasure when you are alone! The masturbation cup allows you to be a real man again 飛機 杯.