You can't ask for much more than this. Firm materials, densely packed details for fast strokes, and strong vibrations youll feel from top to bottom. Combined with the flip-open design of the FLIP ZERO Series, you get an incredibly pleasurable experience from a device thats easy to clean and care for.Two vibration cores packed within the elastomer provides five vibration modes for you to enjoy.The flip-open design makes for an easy cleaning experience and prevents lotion from leaking.Pressure Pads on both sides of the FLIP ZERO EV create an internal vacuum, pushing the internal details closer together for a more focused experience.