Application: The Adjustable Headboard Brackets are easily and securely attach the 14,16,18 inches metal headboard to your bed frame. When the bottom mounting holes on the headboard is less than 10.6inches from the bed frame is applicable. Materials : Headboard Attachment Brackets made of high quality and solid steel. Electrophoresis black plated to prevent rust and corrosion. Heavy duty, a long life and prevent damage to your bed. Installation: Metal headboard brackets compatible with the 14, 16 or 18 inch platform bed frame ,and easy to adjust. When the bottom mounting holes on the headboard is less than 10.6 inches from the bed frame.Just install bolts and screws directly, disassembly also easily, no need others. When the mounting holes on the bottom of the headboard are larger than 10.6 inches from the bed frame, the customer will need to drill the mounting holes for installation using their own tools!