The Body Solid Horizontal Ab Bench is incredibly effective at isolating the entire abdominal region with one synchronized motion. The linkage bars allow upper and lower body movements in one biomechanically correct abdominal crunch, while the unique patented design allows for variable weight resistance; there is a weight post to add more weight for more resistance and there is a counter balance weight post that will decrease resistance, making it perfect for users of any exercise level. Product Features Isolates movement to cover entire abdominal region Synchronized to work upper and lower abdominals with one motion Variable resistance, increase or decrease resistance with weight plates Unique design offers exceptional support throughout the entire crunch Commercial Rated 38"H x 60"L x 32"W, 72lbs