Description Detailed Specs Downloads Reviews Description RAM MOUNT, 1/2" DIA. X 18" LONG ALUM. ROD Detailed Specs MFG Part Number RAM-AR50-18U Product Type Accessory configuration RAM MOUNT, 1/2" DIA. X 18" LONG ALUM. ROD null null null null null null null null null null Downloads Reviews The Ram Mounts RAM-AR50-18U is also known as RAM -RAMAR5018U or RAMAR5018U