Note: Please handle with care when pouring boiling water to avoid scalding injuries. Due to the cup's lack of insulation, we do not recommend pouring excessively hot water into the cup to prevent scalding. CLEANING AND MAINTENANCE TIPS * Do not put in the dishwasher * Do not put in the oven * Do not put in the microwave * Use a neutral detergent for cleaning * Clean promptly after holding beverages (such as coffee, milk tea, milk, etc.) * It is recommended to clean daily * Keep away from open flames * Keep away from sharp objects * Be careful of drops from heights * Be mindful of small parts Bottle Capacity: 1140ml(38.5oz) / 900ml(30.42oz) Rim Diameter: 81mm Bottle Size: 1140ml(38.5oz): Base Diameter:81mm; Cup Height: 28.6cm 900ml(30.42oz): Base Diameter:81mm; Cup Height: 24.7cm Cup Weight: 1140ml(38.5oz): 530g 900ml(30.42oz): 470g Material:. * Cup lid, Straw cap, Straw: Food-grade PP. * Seal ring, Sipper, Tea infuser, Handle: Food-grade silicone. * Cup body: 316 stainless steels. Temperature range for containing liquids: -10 °C to 100 °C / 14°F to 212°F. Insulation Efficiency: Preserve flavor and freshness to keep beverages hot for 5 hours or cold for 5 hours. * The first use may come with some odor, which is a normal phenomenon. Please rest assured. You can soak it in hot water with half a lemon for a few hours. * After use, please clean it promptly to avoid breeding bacteria for a long time.