1. LONG HEAT AND COLD RETENTION: This little kettle's double-walled vacuum insulation technology keeps beverages hot for 12 hours or cold for 24 hours. 2. USER FRIENDLY: With 51 oz large capacity and thermal carafe features extra wide top opening, it's easy for cleaning and adding ice cubes. The cool touch handle design is made for single hand. Poor out the water easily by pressing the simple-push button. 3. QUALITY and DURABILITY: this vacuum thermal carefe is made of durable 188 food grade stainless steel interior and exterior, with food grade pp lid. It's BPA , durable and built to withstand the demands of everyday use. 4. LEAK PROOF: Our leak-proof lid is designed with a insulated and air-tight construction, larger size and dual silicon rings; always locks in the correct place. Even with a slight tilt, this thermal pot will not leak one single drip.