This tumbler is custom powder coated and engraved with a Wyoming Native Buffalo and WYO left in the center of the Buffalo. Keeps drinks hot or cold for hours! You will not be disappointed with the quality of these Tumblers! Stainless Steel Travel Mug features double-wall vacuum insulation with a clear lid. The mug has a narrower bottom to fit most standard cup holders. It is 2X heat & cold resistant compared to a normal travel mug and is BPA and lead free. Cleaning Instructions: Not recommended for dishwashers, hand wash only.