The Powerline Ab Bench features a designed curved back pad that will put the user into a deep pre-stretch position for exercise motion that ranges from 30° back of center to 30° front of center. The heavy-gauge 2” x 3” steel mainframe feature all 4-side welded construction for a rock-solid foundation. Its extra-thick and durable DuraFirmback and seat pads deliver comfort and proper posture. The chrome weight carriage accepts Olympic plates for minimal to maximum resistance. Extra-wide, sealed ball bearing pulley allows complete freedom of movement for oblique workouts as well. Infinitely adjustable back pad ensures quick and easy adjustment for all size users. Excellent for triceps extensions, too.