ACTIVE TUMBLER is designed to help you elevate your energy. The straw-type spout is easy to open and comfortable to drink from. The tumbler has a wide opening so it is easy to put in ice cubes and drinks. Vacuum insulated tumbler retains the temperature of cold drinks for a long time, and the elastomer rubber on the bottom reduces impact when placing the tumbler on the floor. [Tumbler] Capacity: 600ml/20oz Materials: 18-8 Stainless steel (powder coating), TPE [Lid, Spout] Materials: Polypropylene, Silicone Upper-temperature tolerance: 100/212Keep drinks cold (6/43) for 6hours. For maximum insulation efficiency, precool the tumbler prior to use by filling in a bit of cold water for 1-2 mins. 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 a strong impact as it may cause breakage or leakage. Be careful with infants as their mischiefs may cause a