Beautify your front door with these classic looking mail plates. They are sure to enhance any front door. These classic mail slots are made of extra heavy duty. Liberty Wall Mount Non-Locking Letter Plate with 10 in. Adjustable Letter Slot, Bronze. Model# LMBRZ. $ Free delivery. Set your store to see local. Shop our selection of Cover Plate, Mail Slots in the Hardware Department at The Home Depot.