The Pro Club-Line Back Machine was scientifically designed to help you overcome impossible obstacles. It's a favorite of hospital therapists and has a proven success record for setting performance standards for lower back strengthening and rehabilitation. Body-Solid's "no-compromise" design engineering is readily apparent upon first inspection. Features include a fully adjustable seat pad, leg hold-down rollers, comfortably contoured back pad and a weight stack that is easily accessible from the exercise position. Pivot point properly aligns with user's hip joint for biomechanically accurate, full range-of-motion exercise movement. Unique, variable resistnce cam allows smooth, safe, comfortable isolation of Erectus spinal muscles. Adjustble seat belt fits all size users and stabilizes your body for trunk flexion movement. You'll love the way this machine responds- with power, safety and precision.