The mug is made of food grade 304 stainless steel. High quality, indestructible, no rust, long service life, more durable than glass. 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. 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. 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. 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.