Security: Crafted with 0.8mm reinforced steel and anti-pry edges, this metal lockbox withstands extreme weather and tampering attempts. With 3-digits lock offer 1000+ possible combinations for shared access control. Smart Dual-Slot System: The mail box features an extended 4.3" envelope slot + 2" rectangle drop for ballots/cash/keys. A rain hood with mute bar will reduce noice, blocks storms while allowing 24/7 submissions. Easy Wall-Ready Setup: Our lockable mailbox has pre-drilled backplate with included anchors/screws enables simple and quick 1-person installation - perfect for concrete walls, wooden fences, or glass doors. Ideal Capacity: The mailboxes' generous size of 10"x5.7"x3.1", can store daily delivery of letters and other items, good for house use, office use or business use. 8-in-1 Versatility: Perfect for ballots/donations/parcels/keys collection. Use in house, food trucks, schools, polling stations, or as mailbox, voting box, suggestion box, cash box. DIGGOO MAILBOX: Security, durable, waterproof, rust-proof, easy to install. Features: This wall-mount mailbox is made of solid and sturdy Galvanized Steel and provides high-security protection and storage for your mail. The environmental-friendly anti-rusting paint and waterproof design at the end of the flap, protect content from heavy rain and provide long-term durability. It is simple and quick to install by yourself, the mail drop box has pre-drilled holes, mounting screws, and simple installation instructions. you can install it according to the instructions. A large top slot size of the opening makes it easy to accept mail, keys, coin, cash, USB drives, etc. This is perfect as donation box, collection box, suggestion box, mailbox, cash drop box or ballot box for home or office and business use. Package Includes Lockbox*1 Mounting Screw*1; Wall Anchor*1; Instruction*1 Steel wall mount mailboxes for outside will solve all the problems for you. If you encounter any product-related problems, please come to us, we will provide you with high-quality after-sales service.