Gibraltar Mailboxes Mailsafe Large Capacity Rust-Proof Plastic Black, Post-Mount Mailbox, RSKB0000 Large size capacity provides abundant space for multiple parcels Rust-Proof plastic construction is highly durable providing strength and stability Ultra-Violet inhibitor finish prevents color damage from the sun Compatible with multiple Gibraltar posts like the DPK00000, ES200B00 or BP000B01 Locking mail compartment keeps personal information safe from identity theft