The Preacher Curl attachment is a bolt-on upgrade for the F0401A Bench that allows you the freedom to expand your workout regime by putting you in the perfect position to fully optimize your biceps, triceps, and forearm muscles. It also features a bar saddle for increased comfort, and is constructed with durable steel, so it will easily handle any punishment you put it through every day. Attachment can fit any other bench with 2 by 2 frame. Dimensions 23 by 11 inches.