Drawn steel bodies. Rugged epoxy finish bodies resist rust. 6 oz. size available with or without base holder Rigid spouts have 15"diameter ledge-cone machine tip to lift oil filler dust caps (rigid spouts are non-detachable) All flex spouts are zinc plated and detachable with a base thread of 1/4"-28 10 per master 6 oz. capacity with base holder and 6" rigid spout