This Buttplug All Black has deep grooves from the top to the middle, and its texture is smooth.Water and silicone based lubricants can be used here. It is important to clean the cap well after use.Each toy is tightly wrapped in a transparent plastic protective case. Material: phalate-free hypoallergenic PVC Measures: 12 x 5 cmDiscover the entire range of ALLBLACK products, all sizes and all available shapes unleash the imagination in the most varied black version of the market, all products have a hypoallergenic phalato-free material perfect for all audiences.* To achieve an optimal experience and to be able to enjoy it in a pleasant and painless way, ALL BLACK  recommends the use of Black Hole brand lubricants