The Tenga Puffy Masturbation Cup is made of ultra-soft spongy material that provides the ultimate luxurious pleasure, while a silky-smooth silicone cover provides irresistible, supple tactile sensations. Experience super soft sensations like you've never felt before. Squeeze the soft case to control the pressure inside. The anti-dust protective coating has a supple, smooth texture, providing a pleasurable tactile feeling. The waterproof structure allows the internal sponge to stay dry for repeated use. Remove the Top Cover to clean the product without water seeping into the internal structure and causing damage. When the Top Cover and Insertion Point Cap are removed, you can easily clean the inside of the product. The Puffy Sleeve is best used with a quality water based lubricant. Cleaning is simple with a body safe toy cleaner or antibacterial soap and water.