LegXercise uses a patented passive exercise technique that creates constant leg movement to stimulate the body's muscles while in a seated position. It allows individuals to exercise their legs comfortably where traditional exercise routines can be painful or downright impossible for certain individuals. LegXercise is easy to use-simply take it out of the box, plug it in, and select your speed. Turns sitting, resting, and watching tv into an effective and healthy exercise. SKU ADIB071GNXGRV