20 Oz Steel Tumbler Made of 100% BPA-free 18/8 food grade stainless steel Double wall vacuum insulated construction can be used for both hot and cold liquids. Allow hot liquids to cool to a safe temperature and make sure lid is secured properly before consumption: Do not overfill with hot liquids. When filled with hot liquids, keep out of children's reach. Do not clean using bleach or products containing chlorine. Top rack dishwasher safe. Hand wash recommended for optimal product care. Do not use in microwave.