Postal K26 Key Keeper - $35 (Dayton)

K26 Series Key Keeper, postal approved. Made by AF Florence manufacturing company. NEW IN BOX. If used for the USPS, they will install their lock into the hole that only they have a key for. Exterior dimensions: 3-1/4"H x 6"W x 1-15/16"D Interior dimensions: 2-1/8"H x 4-5/8"W x 1-5/8"D Rough Opening: 2-1/2"H x 5"W x 1-3/4"D Heavy-gauge US32D brushed stainless steel construction. $35.