About this item HIGH-QUALITY DURABLE: Mailboxes for Outside are made of strong steel and painted to effectively prevent rust scratch-resistant this product will provide long-term durability and use for years . SECURE DESIGN: The lockable wall mount mailbox is made of a strong metal 3 digital combination lock with over possible 1000 combination code this system is more secure than key locks and it gives faster and more immediate access. Also you can resetting the combination digital whenever. LARGE CAPACITY: Mail box fits hold multiple letters newspapers emails etc. and also can accommodate letters from the family for a period of time. Size:12.4"x 8.54"x 3.35" EASY INSTALLATION: Mail Drop Box has pre-drilled holes mounting screws and simple 3 steps installation instructions. You can install it according to the instructions. It is simple and quick.