Hyskores Model 1911 Mailbox Mount easily installs on top of any 4x4 post and is sure to grab plenty of attention in your support for the Second Amendment. Welded-steel construction with a powder-coat finish stands up to the elements. Easy-to-follow instruction for simple mounting. Wt: 16 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Mailboxes.