Modern Mailbox Post (White) This modern mailbox post design was inspired by the steel stand specially chosen for theSears 1961"Diamond Jubilee - Sears 75 Years" catalog! The 65 degree angle accentuates the lines of the modbox mailbox. Now you can have a post that looks great with your mid-century, modern, and/or contemporary mailbox and home. Material: 1-1/4" square hot rolled steel with 11 gauge wall Paint: powder coated, baked at 400 degrees [environmentally friendly] Size: pole 57.5" long, metal mounting plate 4.125" x 7.875" Mounting: 11 gauge steel plate. Holes align with mailbox [clean lines | no side holes]