· The inner wall of mugs is made of food-grade 304 stainless steel and the outer wall is 201 Stainless Steel with sublimation coated. Therefore, the cups are easy to wash and clean, rust-free, and long-lasting. 

· Double-wall vacuum insulation technology allows this coffee cup to insulate the heat and keep cold beverages for 6hrs, providing you with the best drinking experience. 

· With white sublimation coated, the mugs allow you to print any sublimation prints on them. You can enjoy the happiness of making unique mugs.