The Aerpro CBB4954 Aluminium 50mm Bullbar mount bracket has been designed to mount on any bullbar with a diameter between 49 to 54mm. This mounting bracket wraps around the bullbar and includes a rubber insert that will help prevent scratches to the bulbar. Suitable for vehicles with bullbars that require installation of a UHF CB antenna or driving light. It has a 17mm opening to mount an antenna. Made from aluminium alloy, this high quality bracket which will withstand the harsh on-road and off-road driving environments. All mounting hardware is included.