3 XL Mailbox Design The Handy Post for 3 XL sleeve mailboxes not included is constructed of maintenance free and durable PVC Vinyl and comes with a Lifetime against peeling flaking blistering corroding rotting abnormal discoloration and manufacturing defects It is designed to fit over an existing or new wood 4x4 actual 3 5 x3 5 post or can fit over many no dig supports of similar dimensions If your mailboxes are secured to any type of wood 4x4 configuration you can modify it by cutting it to a straight up 42 height or less to accept The Handy Post for 3 XL The Handy Post for 3 XL is designed to accommodate three L or XL size mailboxes normally 11 inches each in width The cross arm is 40 across rests 42 above the ground and is 5 wide The arm will accommodate up to 100lbs This aesthetically pleasing economical product will enhance any home business or neighborhood property The Handy Post for 3 XL will add character to any setting Conveniently d with stainless steel hardware and installation instructions included Specification . Color White. Material Vinyl. Size 3XL. Arm Size 40 . Rest Size 42 Ground 5 Wide. Weight 13 lbs