Anti-Pry & Anti-Theft Design: Our mailbox post mount features an anti-pry lock against screwdriver prying & drilling, and comes with 3 keys. The innovative baffle door automatically closes if wires or hooks are inserted, avoiding fishing theft

Ample Storage Space: Measuring about 21.06 x 10.63 x 11.22 in, these mailboxes for outside easily accommodate days’ worth of envelopes, mail, and small packages. It can store packages up to 8.27 x 3.94 x 15.75 in, providing sufficient capacity

Durable & Weather-Resistant: Crafted from heavy-duty galvanized steel through hot-dip galvanizing and rust-resistant coating, this security mailbox is durable and stable. The upper mail door with magnetic adsorption blocks out rain, keeping mail dry

Easy Installation: The bottom of our locking mailbox features pre-drilled multi-size holes to fit most standard mailbox posts, VEVOR mailbox posts (sold separately), and wall posts. The included accessories are for quick installation. Note: Please match surface holes with the mailbox. If not, use an adapter plate or wood to drill new holes. Do not drill directly into the mailbox.​

Outgoing Mail Protection: The hidden outgoing mail clip features a closable design to reduce theft risk. Our lockable mailbox comes with a magnetic door to avoid letters & smalls package getting wet or damaged, and a flag to notify carriers for pickup