Worker Bee. Back reads: I AM VERY BUZZY. Great gift for a beekeeper or honeybee lover. This is a double walled stoneware ceramic travel mug created by me in my New Jersey studio. This tumbler measures 3.5 x 6 and ships with a hard plastic BPA free lid that has an open and close feature. The double wall insulates your beverage--keeping hot liquids hot and cold liquids cold. You can dishwash and microwave (lid off) this item.