Material:Stainless Steel Instructions: 1. The liner should be cleaned before initial use. 2. Wash the liner with a small amount of hot water or ice water (do not use a steel ball to clean), and then pour it off, then filled with boiling water or ice water to ensure better insulation. 3. After each use, please clean and keep it dry. 4. In order to extend the life of the vacuum flask, please don't store the charcoal beverage in the cup for a long time 5. Do not be close to the heat source, should not be violently impacted. 6. Keep out of reach of children to avoid burns. 7. Size: 26.5x7cm
