Made of heavy duty aluminum, the USPS approved outdoor parcel locker has two 13" W x 16" H x 22" D compartments and feature a durable powder coated finish. As a compliment to an existing mailbox system, outdoor parcel lockers offer tenants a convenient way to receive packages on site and are fit with a two key security system. When the USPS delivers a parcel to the locker, a parcel key is placed in the recipient's mailbox. Once the recipient opens the parcel locker, the key is automatically retained in the lock until it is removed with a USPS control key. Unit Size: 14.75" W x 34.25" H x 27.5" D. Optional pedestal (3365) is available and sold seperately. Pedestal dimensions: 14.5" H base: 12" W x 12" D.