Monumentum Stainless steel / leather Flask 9 oz. (270 ml), screw cap, black synthetic leather (1854 US) Practical 9-ounce flask made of stainless steel (contains ca. 270ml) With screw cap Contoured flask matches the curve of one's hip or thigh Classy, elegant and timeless design A great gift for friends and family - and of course for your personal use!