This product is a beverage bottle. Cannot be used in microwave ovens. Do not place near fire. After use, remove dirt promptly and dry thoroughly before storing. Do not use cleansers or scrubbing pads when cleaning. When using in a dishwasher, avoid storing the product in a way that applies force to it and place it on top of the appliance, as this may cause deformation. Do not place within reach of infants and young children. Do not swing the product around as this may cause unexpected injuries or accidents. Do not drop or subject the product to strong impacts as this may cause damage or water leakage. Do not shake or subject to strong vibration as the liquid inside may boil over. Do not put dry ice or carbonated drinks in the container as it may expand and cause damage or injury. Do not put in the freezer as it may cause deformation or damage. Be careful not to put too much beverage in the container as it may overflow when closing the lid. Attach the silicone gasket correctly before use. If the lid is not closed properly, the liquid inside may leak, so make sure it is closed properly. After closing the lid, turn the product upside down or sideways to check that there are no leaks. Do not drink while walking as you may hurt yourself if you fall. When putting it in a bag, etc. to prevent leakage, place it upright. Do not leave it in a car or other place where it may become hot. Do not leave it with contents in it for a long time as it may cause the beverage to spoil. Do not use with beverages that contain citrus fruits as the terpenes in citrus peels may cause the beverage to deteriorate. Do not put in boiling water as it may cause burns or deformation. There may be noticeable polishing marks on the surface, but these are marks made by removing protrusions that occur during manufacturing to create a smooth finish. There may be noticeable thin lines on the surface, but these are caused during the molding of the resin product and are not cracks.