***Double-wall vacuum insulated water bottle with straw and cap*** 【Specification】: Size: 10.8x2.8 inch Capacity: 20oz / 600 ml Material: food grade 304 stainless steel material + food grade PP+ food grade silicone (100% BPA free) 【Usage method】: 1. Minors please use under the guidance of adults or after notification. 2. Clean the inside and outside of the cup with neutral detergent in warm water before use. 3. In order to achieve the best heat and cold preservation effect of the cup, it is recommended to add hot water or ice water for preheating or pre-cooling. It is better to add ice cubes when keeping cold. 4. To prevent leakage, please tighten the lid in a clockwise direction when the cup body is tilted. 【Precautions】: 1. Add boiling water to the cup, do not use straws when drinking to prevent burns. 2. When adding boiling water to the cup, it should not be too full to prevent scalds from overflowing. 3. Avoid deformation of the cup caused by falling, collision or strong impact, which will affect the efficacy of the product. 4. Avoid direct heating or placing it in a high temperature place. It is strictly forbidden to heat the product in an open flame, microwave oven, induction cooker, or dishwasher. 5. Do not add dry ice, carbonated drinks and other liquids that are prone to high pressure in the vacuum cup; do not add liquids containing alkaline and acidic ingredients such as soy sauce, soup, etc., to avoid corrosion of the cup. 6. When cleaning, please use neutral detergent and warm water to wash, do not use alkaline bleach, chemical wipes and other cleaning agents. 7. After filling perishable beverages such as milk, please drink and wash them as soon as possible to avoid deterioration of the inner tank. 【Holding time】: 1.100℃ hot water, 10 hours above 45℃, 6 hours above 65℃. 2. Beverages cold for 24 hours.