Forget the days of using your hand to stroke. Now you can enjoy the back-and-forth motion of real sex, without moving a muscle. Switch on, slide in, and let Onyx2 do the rest. Sync it with porn or a compatible toy for sensational interactive play. Kiiroo Onyx2 comes with an easy 'quick setup' guide, but full manuals can be found online. Apply a drop of water-based lubricant to your toy and penis for the most satisfying pleasure. Please note: Onyx2 is NOT waterproof. The sleeve should be removed from the main unit for cleaning. Always ensure the sleeve is FULLY dry before returning it to the unit. To keep your real-feel insert feeling like real skin, we recommend dusting it with renewer powder after cleaning. (Sold separately)