Do you want to keep your and mail and small packages safe? The USPS approved Mail Boss Package Master locking security mailbox will do just that. It offers unrivaled security and protection against mail identity theft, package theft, and vandalism. Not only does it function as a standard mailbox but it can also accept small packages and parcels (H 3.5" - 4.5" x W 3.5" - 4.5" x L 10.5"). Installation takes mere minutes with the patented Fast Trak Mounting System, and everything you need is included with your purchase, including reflective house numbers, drill bit and mounting hardware. Mail Boss Package Master Features: U.S. Post Master Approved for curbside delivery Accepts small packages up to: H 4.5" x W 4.5" x L 10.5" Full service, extra-large capacity curbside locking security mailbox 12/14 gauge electro-galvanized welded steel Stainless steel hinges for ease of use Patented anti-pry latch locking mechanism Patented Mail Shield technology prevents fishing Locking access door with commercial grade 12 disc high-security wafer lock Patented Fast-Trak Mounting Plate for quick installation Durable powder-coated finish Models Compared: Mailbox Package Master Mail Boss View Here Mail Manager View Here Mounting Options Post w/ fast track mounting bracket Post w/ fast track mounting bracket Post with universal hole pattern Mail Shield/baffle door Technology Yes No Yes Outdoor Mounting Yes Yes Yes Steel Gauge 12 and 14 gauge 12 and 14 gauge 14 and 16 gauge USPS Approved Yes Yes Yes Accepts small packages Yes No Yes Max mail / package size 4.5"h x 4.5"w x 10.5”l 1.9"h x 10.25"w 3.5"h x 10.2"w Package Examples Legal-size envelopes, mail bundles etc... box of cheques mail bundles, prescriptions, magazines Mail Storage Capacity 7-10 days 1-2 weeks 3-7 days Access Type Front Front Front (rear access available on Street Safe latitude model only) Plastic Floor Liner Yes Yes No Dimensions H 16" x W 12" x D 21.5" H 13.25" x W 11.25" x D 21" H 11.25" x W 10.75" x D 21" Included in the Box: QTY Item Link 1 Mail Boss Package Master Security Locking Mailbox 1 Fast Track bracket mounting system 1 Vandal Resistant Flag 1 3 Keys 1 Reflective Numbers 1 All Hardware Required for Installation Optional In-Ground / Surface Mount Post In-Ground / Surace Mount Dimensions: Mailbox Height (inches) Width (inches) Depth (inches) Mailbox 16" 12" 21.5" In-Ground Post 43" 4" 4" Surface Mount Post 27" 4" 4"