The Oasis in ground post is constructed of a 4' square cross section of heavy gauge steel tubing with a mounting plate welded to the top. Its durable powder coated white finish matches the white Oasis Mailbox (mailbox sold separately). The post is designed to be mounted in concrete. Contact local postal authorities prior to installation for mounting height and set back distance from the road. Mounting hardware and complete instructions are included.Constructed from heavy gauge galvanized steel for durability Commercial grade powder coated finish Compatible with all Oasis Mailboxes 4 x 10 Mailbox mounting bolt pattern Designed for in - ground installation Includes instructions providing USPS installation height requirements Mailbox post and mounting hardware includedAssembled Depth: 4 Assembled Weight: 30.00 lbs. Depth: 12 Height: 46.5 Width: 6