Kuber Industries Thermosteel 24 Hours Hot and Cold Vacuum Flask with Drinking Cup Lid, 500ml-Pack of 2 (Silver) Package Contents: 2 Piece Stainless Steel Insulated Bottle Material : Stainless Steel Product Dimensions: 7cm x 7cm x 25cm Vacuum Insulation: This flask ensures vacuum insulation, thereby keeping the stored beverage warm or cold depending upon the temperature. You would, therefore, not Have to worry about losing the desired temperature of the beverage even if you Have it after a long time. Leak-Proof Surface: The fact tHat this flask Has a leak-proof body makes it extremely useful. With this vacuum insulated flask, you will not Have to worry about the beverage stored in it leaking through the surface – especially while you are traveling.