1-year limited warranty, Fits in most corporate and personal coffee machines, 18-8 Stainless Steel dual wall construction, Copper lined, vacuum-insulated deep draw liner maintains optimal drinking temperatures, Single self-contained unit transitions between poured drink insulated tumbler, 12 oz can cooler, and 12 oz beer bottle cooler, Features a sweat-free design and 2 attachments: thumb-slide, screw-on lid and a black can/bottle ring, Twist top rubberized ring to hold a standard 12 oz. can or bottle,