VACUUM INSULATION COFFEE MUG: The coffee mug is vacuum double insulated. The double-walled insulation design ensures beverage can stay either hot or cold over time. Let you enjoy hot or cold drinks. COFFEE MUG CUP WITH SLIDING LID: The grey transparent plastic sliding lid with a rubber gasket, which is well tightness. It is easily swiped to open while keeping away from splashing. Closing the sliding lid keeps clean when do not use the mug. There is drinking hole on the top. STAINLESS STEEL COFFEE MUG: The coffee mug is made of food-grade 18/8 stainless steel, liner of coffee mug will not produce any taste and will not rust, hand wash is recommended. The structure of the coffee mug body is sturdy, could be used for a long period of time. 12OZ COFFEE MUG:12oz mug is lightweight and easy to carry, the surface of it is matte powder coating, this sweat-free design make coffee mug easy to grip, gently fits into your hand. coffee mug handle is long and wide, it is fit your fingers to grasp. 100% CUSTOMER SATISFACTION: There are multiple colors to choose freely. 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. Color:Sliding Lid: Navy| Size:1 pc Essential 12oz stainless steel vacuum insulated coffee mug for home, travel, office, lounge, bar, restaurant and many other occasions. It can hold any hot and cold drink you like,it is also a perfect gift for Father's Day and Mother's Day. The characteristics of 12oz stainless steel vacuum insulated coffee mug: 1.Double-wall vacuum insulation. 2.Food-grade 18/8 stainless steel. 3.Coated powder sweat-free design. 4.Grey transparent plastic sliding lid with a rubber gasket. 5.Long and wide handle. 6.Multiple colors to choose. Helpful Tips: 1.Hot contents can create pressure resulting in discharge of hot vapor.When filling vessels with boiling liquid, allow liquid to cool down with the lid off for at least 3 minutes before attaching the lid. 2.There is sliding lid, it could be took apart and easy to clean. 3.Wash in warm water, and leave to dry after washing. 4.Handwash only,washing painted stainless-steel coffee mug in dishwasher could result in premature wear,discoloration, or pealing of paint. 5.Always keep vessels out of reach of childern when filled with hot liquids. 6.The coffee mug is insulated, don't drink hot drinks too quickly and watch out for high temperature.