[Tumbler] Materials: 18-8 Stainless steel (powder coating), TPE. [Lid, Spout] Materials: Polypropylene, Silicone. Upper temperature tolerance: 100℃/212℉. Keep drinks cold (6℃/43℉) for 6 hours. For maximum insulation efficiency, pre-cool the tumbler prior to use by filling in a bit of cold water for 1-2 mins. BPA Free. Made in China. This is a tumbler for cold drinks. Do not use in a microwave. Do not use in a dishwasher. Do not place near open flames. Do not put in boiling water. Do not drop or subject the product to strong impact as it may cause breakage or leakage. Be careful with infants as their mischiefs may cause accidental ingestion or injury. Do not put hot drinks as it may cause scalds. Do not put dry ice or carbonated beverage as it may expand and cause breakage.
Be careful not to pour too much beverage as it may overflow when closing. Close the lid tightly to prevent spills or leakage when carrying. Please attach silicone rings so that the right side is up. Do not drink while walking as it may cause an injury in case of a fall. Keep the product upright to prevent accidental spills or leakage. Do not shake or apply strong vibration to the tumbler, as it may cause the leakage from the tip of the spout due to changes in internal pressure. Do not leave the product under high temperature such as in a car. Do not put drinks which is easy to rot, such as milk. Do not leave the product with drinks inside for long time as it may spoil or cause rust on tumbler. Immediately wash and dry well after use, then store it away from other metals to prevent rust. Do not leave it soaked as it may rust or break. Wash with care. Do not use abrasive cleansers or steel wool. Do not remove the spout forcibly. Do not use chlorine bleach as it may cause rust. When rust spots are found inside the tumbler, add warm water and citric acid in ratio of 10:1, wash with soft sponge after leaving it for 2-3 hours, and rinse well.