Features include: 6 oz. size available with or without base holder. Rigid spouts have .15" diameter ledge-cone machined tips to lift oil filler dust caps (note: rigid spouts are non-detachable). All flex spouts are zinc plated and detachable with a base thread of 1/4"-28. 6 oz. capacity with base holder and 6" flex spout. 10 per master.