Specifications： Material: 304 stainless steel. Capacity: 600ML/22OZ. Instructions: 1. Minors please use under the guidance of adults or after reporting. 2. Clean the inside and outside of the cup with neutral detergent in warm water before use. 3. In order to achieve the best effect of keeping the cup hot and cold, it is recommended to add hot water or ice water for preheating or pre-cooling. It is better to add ice cubes when keeping cold. 4. To prevent leakage, please tighten the lid of the cup clockwise when the cup body is tilted. NOTE 1. Add boiling water to the cup, do not use straws when drinking to prevent burns. 2. When adding boiling water to the cup, it should not be too full to prevent scalds from overflowing. 3. Avoid falling, collision or strong impact to cause the cup body to deform and affect the product's efficacy. 4. Avoid direct heating or placing it in a high temperature place. It is strictly forbidden to heat the product in an open flame, microwave oven, induction cooker, or dishwasher. 5. Do not add dry ice, carbonated drinks and other liquids that are prone to high pressure in the vacuum cup; do not add liquids containing alkaline and acidic ingredients such as soy sauce, soup, etc., to avoid corrosion of the cup. 6. When cleaning, please use neutral detergent and warm water to clean, do not use alkaline bleach, chemical wipes and other cleaning agents. 7. After filling perishable beverages such as milk, please drink and wash as soon as possible to avoid deterioration of the inner tank. 8. Do not use it for other purposes except cold and heat preservation.