Sports Water Bottle Size: 10.8*2.8inch (27.5*7.2cm), loaded at most 600ml of water. Comes with 1 rotating bottle cap, 1 built-in vent valve and 1 straw. External bottle printing (bottle cap fixed black, bottle neck fixed silver) Holding Time Keep beverages cold for 24 hours, hot for 8 hours. 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 precooling. Adding ice cubes will make the best cold preservation effect. High-quality Materials 1. High-quality food grade stainless steel materials, keep your water glass away from rust and metal odors. 2. Double-layer food grade stainless steel liner, cold drinks stay icy cold and hot drinks stay piping hot. 3. Polyethylene straw, safe and harmless, resistant to high temperature and no deformation. 4. The plastic bottle cap without BPA is equipped with a built-in exhaust valve, which can prevent gas or liquid from splashing when the bottle cap is opened to ensure safety. Warm Tips 1. To prevent leakage, please tighten the lid clockwise when the cup body is tilted. 2. When adding boiling water to the cup, do not use straws when drinking to prevent burns. 3. After filling perishable beverages such as milk, please drink and wash as soon as possible to prevent the inner tank from spoiling. 4. When cleaning, please use neutral detergent and warm water to clean, do not use alkaline bleach to avoid corrosion of the cup. Quality Assurance Our team is committed to providing customers with the highest quality products and the most satisfactory customer service. If you have any questions about product quality, please contact us directly and we will serve you wholeheartedly.