Features:1. Constructed from steel bearings, vinyl covered molded foam arm pads and adjustable hand grips.2. The curved track mimics natural spinal flexion, allowing anyone to perform an abdominal lift in perfect form.3. The ab Abdominal device features a multi-angle adjustable seat and plate-loading posts to add extra weights.4. Abdominal trainer promotes core stabilization while exercising the abdominal through a full range of motion.Specifications:Material: heavy duty steel frame, sponge and plasticOverall size: 51.18"x 26.77"x 49.21"Weight Capacity: 353 lbsLED display: time, cal, countBasic Instrustions:Adjust seat so it is straight for lower lift or angled for side lift(see owner’s manual)Kneel on knee pad with both feet hooked against the rear edge of the padPlace forearms and elbows on arm pads. Lightly grasp handlesSlowly pull knees forward until you fully contract your abs. Return slowly to starting position, and repeat