Features 1、Thermal Insulation: Vacuum technology is adopted, with good thermal insulation and cold insulation performance of 6 hours, effectively ensuring the temperature. 2、Large Diameter: The cup mouth is 8.5cm large diameter design, which is convenient for putting ice, lemon, orange and other fruits to meet your nutritional needs. 3、Transparent Top Cover: This mug is designed with a transparent top cover, so you can see the solution or objects in the mug, which is easy to clean and convenient to clean the inside of the mug. 4、Simple Operation: The top is designed with a push cover, which can be opened or closed by one hand, making it convenient and easy to use. 5、Food Grade Material: The liner is made of food grade stainless steel, and the coating process ensures harmless and tasteless, ensuring product safety and food safety. Item Type: Vacuum Insulation Coffee Mug Material: Stainless Steel Gross Weight: 218g / 7.7oz Capacity: 12oz 350ml Bottom Diameter: Approx.8.5cm / 3.3in Height: Approx.8.5cm / 3.3in Cup Mouth Diameter: Approx.8.5cm / 3.3in Thermal Insulation Efficiency: above 70℃ for 6 hours Package List 1 x Mug