Product name: Stainless steel portable thermos / Capacity: 0.9L / Material: Stainless steel (powder coating), polypropylene, silicone rubber / BPA-free / Made in China / Heat retention: 70℃ or higher (6 hours) Cold retention: 6℃ or lower (6 hours) *Heat retention refers to the temperature of hot water measured 6 hours after pouring hot water into the product at room temperature of 20℃±2℃ and closing the lid when the water temperature reaches 95℃±1℃. *Cold retention refers to the temperature of cold water measured 6 hours after pouring cold water into the product at room temperature of 20℃±2℃ and closing the lid when the water temperature reaches 4℃±1℃. *The heat retention (cold retention) effect will be improved if you pour a small amount of hot water (cold water) into the product before pouring in the beverage and preheat (precool) it for about 1-2 minutes. ○This product is a beverage bottle. ○Cannot be used in microwaves, ovens, dishwashers, or dryers. ○Do not place near fire. ○Do not boil to clean. ○Keep out of reach of infants and young children. ○Do not drop or subject to strong impact as this may cause damage or leakage. ○Do not put dry ice or carbonated drinks in the bottle as this may cause the container to expand and cause damage or injury. ○Do not put in too much beverage as it may overflow when closing the drinking spout part. ○If the lid and drinking spout part are not closed properly, the liquid inside may leak, so make sure that they are securely closed. ○Please use with the silicone gasket attached correctly. ○When closing the lid, make sure that it is closed horizontally. ○Turn the lid counterclockwise, and then turn it clockwise after you feel a click to close it horizontally. ○After closing the lid, turn the product upside down or sideways to check that there are no leaks. ○To prevent any leakage, place it upright when putting it in a bag, etc. ○When turning the lid, make sure to hold the drinking spout part firmly in place so that it does not come loose when opening it. ○ Due to its double structure, even if the part you touch with your hand is not hot, the drink inside may be hot, so please be careful not to get burned. ○ Do not leave it in a car or other places where it may become hot. ○ Do not leave it for a long time with contents inside, as this may cause rust or the drink to spoil. ○ To prevent rust on the stainless steel, remove dirt and moisture as soon as possible, dry thoroughly, and store away from other metals. ○ Do not leave it in water, as this may cause rust or damage. ○ Do not use cleansers or scrubbing pads when cleaning. ○ Do not use chlorine bleach, as this may cause rust. ○ If rust-like spots appear on the inside of the container, add lukewarm water and about 10% citric acid, wait 2-3 hours, wash with a soft sponge and rinse thoroughly.