Enjoy a beverage by drinking through the screw-on lid, or place a 12oz can inside the tumbler fixed with the interchangeable, rubberized ring. You choose! Durable, double-wall stainless steel vacuum construction with copper insulation, which allows your beverage to stay cold for 24 hours and hot for at least 6 hours with the easy sipping lid. The construction also prevents condensation on the outside of the tumbler. Wide opening for comfortable filling and pouring. 12oz.