A classic Tenga Cup, enjoy the unique sensations provided by this pleasurably textured toy. Upon insertion, enjoy the smooth pad that keeps lubrication inside of the device and keeps it from spilling out with each stroke. The first sensation is that of a tight squeeze followed by a gentle release as the cup opens up further down, mimicking biological experiences. Unlike anything you have experienced before, the function of suction uses air-tight pressure controlled by your fingertip placed at the top of the device. As you stroke, enjoy the increasing pressure pulling you inside. Release your finger to release some of the pressure. A cup that does not have a motor or require batteries, this device is quiet, lightweight and discreet. Pre-lubricated for immediate use upon opening, it is ready when you are. After use, simply dispose of the device in a waste bin.