Each pull in this set is a one-piece construction. The ring, post, and back plate are fastened together. The steel ring is 1 3/8 round. The posts and back plates are brass, but it appears that they were were nickel plated at one time. Much of the plating is still intact. The cone-shaped back plates protrude from the face of the drawer 3/4 of an inch. They measures 1 1/2 inches round. The bolts are 1 1/2 inches long from the back plate. Each pull is secured from the back of the drawer with an old nut. This is a fine old set that is quite rare.