Stanley master series vacuum thermos flask 750ml insulated 188 stainless steel black the handy thermos from stanley the stainless steel 188 stainless steel cup convinces with a quadvac vacuum insulation which keeps your drinks hot for up to 27 hours or up to 27 hours cold up to 100 hours iced the lid also made of 188 stainless steel can be used as a drinking cup the case is decorated with a nice finish in black the lid is easy to remove and can be easily cleaned in the dishwasher bpa free cap