The FCB450 Bollard is Marine grade, corrosion resistant, heavy walled, high pressure die-cast aluminum. Tubular housing is extruded aluminum. Impact resistant, UV stabilized, clear, polycarbonate diffuser. Neoprene continuous closed cell gasket to seal out contaminants. Captive and recessed stainless steel, tamper resistant hex socket screws. A thick die-cast base plate is provided and anchored through with a set of three 12″ length x 3/8″ diameter hot dipped anchor bolts. Heavy gauge base bracketing for bollard installation. ETL Listed for wet locations. The Finish goes through a six stage chemical pre-treatment process that includes iron phosphate, to prepare the substrate for a UV stable, super durable standard polyester powder coat. Available Finishes include Black, Bronze, Silver, White or a Custom Color.