Our Replacement Pedestal for Type III & IV Cluster Boxes is a USPS approved pedestal for Type III and IV group (CBU) Cluster Box Units. Made of thick aluminum that will not rust. Pedestal stands 14 1/2″ high and has the standard USPS bolt pattern 4″ x 10″with pre-drilled holes for 1/2″ bolts (3/8″ bolt pattern to match CBU Cabinet). Six powder coated colors to choose from. SHIPS FAST!