Pacific Bay Saltwater Aluminum Butts swaged from marine grade aluminum for strength and durability. Pac Bay Aluminum Butts are anodized to prevent corrosion and resist scratching while the locking nuts are reverse knurled to prevent the scratching of rods when transporting or storing. Looking for an Aluminum Butt to stand up to long offshore fishing battles - Then look no further then the Pac Bay Saltwater Aluminum Butt.