Made of food-grade stainless steel and designed with a double layer of vacuum insulation, this 12 oz tumbler has a very good heat retention effect and can keep your favorite beverage cold or hot for hours. The top is equipped with a cover and a drinking hole, making cleaning more convenient and leaving no dirt. Customize this tumbler to make a memorable impression at any occasion. Suitable for use on the go, in the office, indoors and outdoors, etc. Imprint drinkware only can be handwash. BPA FREE, FDA certified, CA Prop 65 list