The Demdaco Heat Reveal Mug is the perfect gift for Mother's Day, featuring a round shape and a 16oz size. Made of stoneware, this contemporary style mug is designed to reveal a special message when filled with hot or cold beverages. The solid color pattern and multi-color theme make it a unique and sentimental present for grandma, showcasing the world's best grandma title. This original novelty coffee mug from DEMDACO is a must-have collectible for any unisex adult looking to show their appreciation to their grandmother.