The SereneLife mailbox is rugged and reliable, constructed from galvanized steel. Mount the mailbox in a convenient location indoors or out. Weather-resistant construction allows for universal placement on virtually any flat surface. The secure key and locking mechanism provides mail safety and the unit includes (2) keys. DETAILSFeatures: Universal Mount to Any Wall or Flat Surface Secure Key & Lock Mechanism Durable & Weather-Resistant Construction Rugged Outdoor Mailbox Design Easy Access Metal Flap for Mail Insertion Pre-Drilled Rear Panel Holes for Easy Installation Convenient View Window for Name/Address Label Includes Mounting Hardware & (2) Keys Perfect for Home or Office Use Technical Specs: Construction Material: Galvanized Steel Dimensions (W x H x D): 10.2’’ x 12.2’’ x 3.6’’ MANUALS & DOWNLOADSSLMAB04 - Manuals