In-ground Steel Mailbox Post $74.95 (plus $24.65 shipping) Dimensions: 4” x 4” x 48” long Thickness: 1/8” tube steel post and adaptor plates. Made in the USA from powder coated galvanized steel, these strong, versatile, posts are perfect for standard in-ground mounting. Address numbers are not included, but are available by clicking HERE. Please indicate your choice of color: White Mallard Green Black Stone Grey (pictured) Juniper Green Taupe Quantity: We gladly accept Copyright 2004. All Rights Reserved. Web site design by Morganic Studios.