BR JUNKER TUMBLER is made of stainless steel and have double-walled insulation, which means your beverage will stay hot at least 6 hours or cold 24 hours. Doesn’t sweat on the outside.Package comes with 2 different stainless steel straws and the tool to clean them easily.Perfect for travelers, drivers, teachers, gifts, BBQ experts, party cups, sailors & more.More colors optional.