1000 ML Capacity • Keeps Drinks Hot Or Cold For 24 Hours • Simple Threaded Lid For Easy Use • 100% Rust Free Steel • Copper Coating For Better Heat Retention Milton Insulated Steel Bottles Are A Part Of The Thermosteel Range. Its Unique Temperature Retention Mechanism Keeps Your Beverages Hot Or Cold For 24 Hours. It Will Keep Your Drinks Just The Way You Need Them Through Out The Day.