MB-B Features: Solid steel rod dip handles welded to a 3 sided face plate for a secure grip on either the BD-7 or BD-11 Power Racks. The solid steel rod is positioned completely through the main frame uprights, allowing a safe locking mechanism to the frame. The correct position of the handles will be placed so you the user is on the inside of the unit. BD-7 handles only fit the BD-7. BD-11 handles can fit both the BD-7 and BD-11 Power Racks.