Yellowstone Ceramic Mug Rip Collection is inspired by the rustic landscapes of Yellowstone Ranch. Perfect to savor every sip of your favorite coffee or tea. The Rip Collection is made with a reactive glaze making each item unique with slight variations in pattern. Features an ergnomic handle that fits perfectly in your hand. Crafted from durable ceramic this mug is tough enough for everyday use and also sharing with friends. Microwave and Dishwasher safe. Made of Stoneware. For product s longevity hand wash with dish soap and a soft sponge.