Originating from alternative Chinese medicine, cupping is currently also used in BDSM. Place the Vibrating Suction Cups onto the skin, so a vacuum is created on the skin. This already creates strong stimulation. Using the one speed vibrating bullet, the stimulation will be all the more powerful.<br /><br />Specifications diameter 68 mm. Product height 38 mm. Material Silicone. Phthalate free. Batteries 1 AG5 included. Color Black. From Shots America.