Body-Solid Commercial Semi-Recumbent Ab Bench Abdominal bench lets you perform crunches and knee raises from a safe and comfortable position 5-position adjustable seat, 5-position upper-ab arm, and 4-position lower-ab leg support Ergonomically positioned handles provide natural, biomechanically correct motion Durable 11-gauge steel mainframe and double-stitched upholstery Measures 69 by 34 by 52 inches (L x W x H) and weighs 88 pounds Includes in-home limited lifetime manufacturer's warranty