VACUUM INSULATION COFFEE MUG: The coffee mug is vacuum double insulated. The double-walled insulation design ensures beverages can stay either hot or cold over time. Let you enjoy hot or cold drinks. COFFEE MUG CUP WITH LID: The grey transparent plastic lid with a rubber gasket, is well tightened. It is easily swiped to open while keeping away from splashing. There is a drinking hole on the top. STAINLESS STEEL COFFEE MUG: The coffee mug is made of food-grade 18/8 stainless steel, liner of the coffee mug will not produce any taste and will not rust, hand wash is recommended. The structure of the coffee mug body is sturdy and could be used for a long period of time. 14OZ COFFEE MUG:14oz mug is lightweight and easy to carry, the surface of it is matte powder coating, this sweat-free design makes the coffee mug easy to grip, and gently fits into your hand. The coffee mug handle is long and wide, it is fit your fingers to grasp. 100% CUSTOMER SATISFACTION: There are multiple colors to choose from freely. The coffee mug is suitable for home, travel, office, lounge, bar, restaurant, and many other occasions. It is also a perfect gift for Father's Day, Mother's Day, Birthday, and Christmas. If you are not satisfied with your purchase, please feel free to contact us, we will solve all the problems for you.