COLOUR: Black  SIZE: φ70 x H170 mm / 350 ml DETAILS: 18-8 Stainless steel, Polypropylene, SiliconeBPA FreeKeep drinks hot and cold for 6 hours. (Hot above 65°C / 149°F, cold below 8°C / 46°F)For maximum insulation efficiency, preheat or precool the tumbler prior to use by filling in a bit of hot/cold water for 1-2 mins.Do not put in dry ice or carbonated beverage as the product may expand and break. You can use it with dairy products, fruit juices, and sports drinks but we recommend not leaving the drink inside for too long as it may spoil or cause rust on tumbler. KINTO is a Japanese brand aspiring to create products that enrich your everyday life.