Get a mailbox you can rely on for your apartment, school, and more by investing in this 13 tenant compartment unit! It is manufactured from heavy gauge aluminum, so you can rest assured that this durable mailbox will last you many years. Plus it is made with corrosion resistance, meaning it can be used indoors and out (with kiosk or other application, pending local USPS approval). Each door has a dustproof lock, and the outgoing mail compartment is installed with anti-fish comb. Never worry about the safety of your mail again! This unit is USPS approved and meets STD-4C requirements for renovations and new construction. Please contact us for specific unit measurements.