Butterfly Massager is designed to increase circulation, reduce body fat and help tone muscles based on targeted application. Daily use of the Butterfly Massager on targeted muscle groups and fatty areas for muscle toning did yield significant fat loss as well as a more toned muscle group. The Butterfly Massager lets you do your exercise when you are doing just about anything: watching TV working on the Computer driving a Car Cooking etc. It fits underneath your clothes and is small enough to let you do all your other work comfortably.