Graduated pleasure, literally. The Air Pump Booty 5 is an inflatable vibrator built for experienced users pursuing anal training: a tip of increasing diameter, a ribbed structure that intensifies as it grows, and a looped handle for control throughout.
The body itself is firm, but once inflated the surface of the tip becomes malleable for peak comfort, letting you increase the diameter slowly and precisely. App connectivity adds remote control of the vibration to the equation.