Specification:Size: 10.8 x 2.8 inch ( 27.5 x 7.2 cm )Capacity: 600 ml ( 20 oz )Material: Food grade 304 stainless steelPackage: 1x sport water bottleHolding time: 10 hours above 45℃, 6 hours above 65℃Features: Leak-proof straw lid, portable wide handle, vacuum insulation, personalized patternUse methods:1- Minors, please use under the guidance or advice of adults2- Use a neutral detergent to clean the inside and outside of the cup in warm water before use3- In order to achieve the best cold preservation effect of the vacuum flask, it is recommended to add hot water or ice water for pre-heating or pre-cooling. It is best to add ice cubes when refrigerating4- To prevent liquid leakage, please tighten the lid clockwise when the cup body is tiltedNotes:1- Add boiled water to the cup, do not use a straw when drinking, to avoid burns2- When adding boiling water to the cup, it should not be too full to avoid scalding and overflow3- Avoid falling, collision or strong impact to deform the cup and affect the product's efficacy4- Avoid direct heating or placing in a high temperature place. It is strictly forbidden to heat the product in an open flame, microwave oven, induction cooker or dishwasher5- Do not add dry ice, carbonated beverages and other liquids that are prone to high pressure into the vacuum cup; do not add liquids containing alkaline and acid components such as soy sauce, soup, etc., to avoid corrosion of the cup6- Please use neutral detergent and warm water when cleaning, do not use alkaline bleach, chemical wipes and other cleaning agents7-After filling perishable beverages such as milk, please drink and wash as soon as possible to avoid deterioration of the inner tank8- Except for cold and heat preservation, it should not be used for other purposes