"2.2 Liters Vacuum Flask 10-12 hours of Heat Retention with proper usage Screw Twist Type Locking Mechanism Double Cup Pure Virgin Polypropylene Plastic High-Quality Glass Refill Capacity: 2.2 Liters 2 Liters Colored Stainless Steel Whistling Kettle Heat Up Quickly Durable Construction Easy To Use And Clean Note: The availability of colors vary per store."