Click here to view Details Ideal for business use, the PMH 6 unit features five oversized locked incoming compartments (each sized 5" H x 12-1/2" W x 15" D) and one locked outgoing mail compartment (5" H x 12-1/2" W x 15" D) with drop slot. This unit is designed to accept the USPS master lock. Comes with your choice of in-ground post or surface mount pedestal. Manufactured of aluminum with anodized doors and powder coat grey hood and post. Post is manufactured of steel with a powder coat finish.