A chinning-bar cable attachment is one of three must-have attachments for gym owners with cable machines and functional trainers, the other two being the cable handle and the lat pull-down bar. Chinning bars are primarily used to train the muscles of the back, shoulders, and arms through a variety of pulling motions. Attach your chinning bar attachment to a cable that offers vertical resistance for a neutral grip (palms facing each other) pull-downs. Attach it to a cable that offers horizontal resistance to perform rows, two compound exercises that engage all the muscles in the back, but especially the latissimus dorsi and the biceps. This particular chinning bar, The BOLT Chinning Attachment, is made of solid steel, features light knurling on the handles, and weighs 7 pounds. Specifications • Length: 9"• Width: 5"• Height: 6"• Weight: 7 lbs.• Weight Capacity: 700 lbs.