Double Stainless Steel Color Pot Stainless Steel 1.0L Size: Bottom diameter 14cm, Height 18cm Weight: Approximately 600g Heat Retention/Cold Retention Pearl Metal Unused item. Opened to check the contents. The box shows signs of age due to long-term storage. Used once this time to check the heat retention time. December 25th Initial temperature: 98 degrees Celsius After 6 hours: 65 degrees Celsius After 10 hours: 58 degrees Celsius After 12 hours: 53 degrees Celsius After 24 hours: 35 degrees Celsius Based on this one-time check, the results were as above. According to the box's description, the function seems to be intact.