Handy Post HP-1W1 Sleeve Vinyl Mailbox, White, 42-in H x 8-in L x 5-in W

Handy Post 1, HP-1W1, for any size mailbox (mailbox not included) 42-in H x 8-in L x 5 in W Maintenance Free and Durable PVC (Vinyl) with Lifetime Warranty Fits over existing or new wood 4x4 (actual 3.5"x3.5") post or many no-dig supports Simple to install and will NEVER lose its white color The cross-arm is 8" long across the upright. The vertical post and the height of the cross-arm is 42" from the ground