Fun Factory took Miss Bi's two powerful, rumbling motors and put them into a design that’s long and firm, for size lovers who crave dual stimulation. The Lady Bi is flexible-but-not-too-flexible, so users can enjoy a more intense pressure without sacrificing the comfort of a shaft that adapts to motion. The length provides more options for play, whether that means vibrating the arousal-triggering a-spot or simply having greater mobility. Six vibration intensities and six vibration rhythms give diverse pleasures.