Architectural Mailboxes Oasis Post-Mount Locking Mailbox is ideal for mail bundles and small parcels. The size of the box makes it convenient for catalog and internet shoppers. Incoming hopper and mail retrieval doors have rubber seals that assist in keeping packages dry. The stainless-steel body features a powder-coated finish for corrosion resistance. A stainless steel cam lock comes with 2 keys for added security. Color: Sand.