The Gardco-Emco Lighting RA4.5 straight aluminum pole consists of a one piece 4½" round extruded aluminum lighting standard mounted to a structural quality carbon steel base tenon. This construction offers the corrosion resistance and flexibility of aluminum with the strength and integrity of steel. The poles are finished with either Architectural Class 1 anodizing or electrostatically applied TGIC polyester powder coat. All poles include anchor bolts, full base cover, hand hole, ground lug and top cap.