Zanussi 0.5L/16.9 fl oz Stainless Steel Vacuum Thermos Flask in Yellow A one touch screw in stopper and Double walled vacuum insulation. This Zanussi soft touch coated stainless steel vacuum flask keeps your drinks hot or cold for several hours. Made with high quality, tough 18/8 stainless steel with no breakable glass. 0.5L/500ml capacity