The coffee cups set stainless steel, rust-free, strong, light and food safe When you touchs it, do not worry about it breaking The double wall structure provides barrier for heat transfer and has good thermal insulation performance Keep your coffee longer and it from getting hot The coffee cups set can be used to hold lattes, cappuccinos, milk, teas, beer, milk,, water and most daily drinks Suitable for kitchen, car,,, teahouse, restaurant, leisure, outdoor picnics and campings Easy to clean: Clean and dry with sponge or soft cloth, or safely put in the dishwasher Espresso cups can keep the freshs and taste of coffee, which will make daily-life more and refined This will be great gift