Description Detailed Specs Downloads Reviews Description RAM MOUNT, UNPKD. RAM BALL WITH 5/16"-18 POST Detailed Specs MFG Part Number RAM-B-239U Product Type Accessory configuration RAM MOUNT, UNPKD. RAM BALL WITH 5/16"-18 POST null null null null null null null null null null Downloads Reviews The Ram Mounts RAM-B-239U is also known as RAM -RAMB239U or RAMB239U