The “Tough Side” firmly tightens while the “Tender Side” gently stimulates. Enjoy either one side at a time, or be captivated by the contrasting sensations from both ends of the item. Tenga Dual Sensation Cup is a masturbator with completely separate cavities for maximum hygiene, capable of simulating anal and vaginal penetration. Tenga masturbators are already lubricated thanks to the "Smooth Pad", a soft and smooth pad that applies lubricant from the start of insertion and are intended for single use only (not washable). For multiple uses, we recommend that you use an ultra-thin condom.