PowerLine PAB21X Ab Bench Unique ab bench provides a full range of abdominal resistance for core training Adjustable curved back design delivers a more intense abdominal contraction Ball bearing pulley allows complete freedom of movement for each core muscle group, including obliques Accepts both Olympic and standard-sized weight plates for resistance (sold separately) Measures 37 by 18 by 37 inches (L x W x H) and weighs 31 pounds In-home 10-year frame warranty with 1-year warranty for all other parts