What kind of lubricant should I use?

Pretty much all onaholes and pocket pussies and even sex dolls are made from TPE/TPR material. We recommend using water-based lubricant with this, because it is 100% safe for the material. If something else is recommended it will say so on the product page. 

Not sure which lube to pick? Keep in mind that thicker lube leeds to a milder experience, while thin lube lets you feel the texture better, leading to a more intense experience. In general, TYO 360 is a good place to start.