Create a lean, muscular waist while surrounded in comfort and convenience. The Pro Club-Line Ab Machine provides absolute isolation of the stomach muscles with its unique, variable resistance cam. Biomechanically engineered for smooth, comfortable, full range-of-motion cruching movement - it was designed for firming, flattening and isloating the entire abdominal area. Features include fully adjustable seat pad, leg hold-down rollers, comfortably contoured chest pad and a weight stack that is easily accessible from the exercise position. Adjustable seat belt fits all-size users and stabilizes your body for ab crunches beyond your body weight. All these conveniences add up to workout pleasure, safety and top performance.