The mug is made of food grade 304 stainless steel. High quality, indestructible, no rust, long service life, more durable than glass.<br> The simple and slim design provides a nice espresso cup for your dining table. The special outline consists of two non-slip fingerprint printing areas and feels perfectly.<br> These stainless steel coffee mugs use double-walled vacuum heat preservation technology that can keep the drink hot and cold for several hours! The taste of coffee is retained and you can enjoy the taste of espresso.<br> These stainless steel coffee mugs are not only suitable for adults, but also for children. With the right capacity, it is a perfect gift for friends, family, birthdays, Christmas, Thanksgiving, etc.<br> Very suitable for coffee cups, small tea cups, milk cups, small wine cups, beverage cups, etc. It is also suitable for children's birthday parties, travel, camping or everyday use.