This Stainless steel vacuum flask is light weight, almost unbreakable, has a 750ml & 450ml capacity, and is fantastic for journeys where you need a hot or cold drink to stay at its temperature, vacuum sealed flask push and pour stopper, lid doubles as a cup, holds temperatures hot or cold for up to 24 hours, Retain 80-90% of contents temperature over six hours Self-closing pouring stoppers Easy to clean.