This is a tumbler for beverage. Do not use in a microwave. Do not place near open flames. Immediately wash and dry well after use, and keep dry when not in use. Wash with care. Do not use abrasive cleansers or steel wool. When using a dishwasher, please store products in the upper basket to avoid application of force and weight as they may cause distortions. Keep out of reach of children. Do not swing the product around as it may cause unexpected injuries or accidents. Do not drop or subject the product to strong impact as it may cause breakage or leakage. Do not shake or shock the product as it may cause liquid to spill. Do not put in dry ice as they may cause the product to expand and break. Do not put the product in a freezer as it may cause warp or breakage. Be careful not to pour too much beverage as it may overflow when closing. Ensure the silicone ring is attached correctly. Do not leave the product under high temperature such as in a car. Do not leave the beverage inside the product for long time as it may spoil. Do not use the product with citrus fruit juices as it may deteriorate due to terpene contained in the fruit’s skin. Do not pour in boiling water as it may cause scalds and warpage. Some products may have roughness on the surface due to the polishing process to remove sharp parts. Some products may have thin lines on the surface due to plastic manufacturing process.