Ceramika Bona H1229H Polish Pottery Ceramic Bubble Mug Hand Painted, 12-Ounce 100% Stoneware Microwave dishwasher freezer and oven safe up to 500 degrees F, lead and cadmium free, chip and crack resistant, easy to clean Made out of white clay stoneware, painted by hand using sponges and brushes Made in Boleslawiec, Poland, region famous for its high quality ceramics, history of making pottery in the region dates back to 14th century Premium quality European stoneware certified to be Quality 1 selection, pattern D106 style 159 Measures 3.50-Inch high by 4.84-Inch long by 3.78-Inch wide, holds 12-Ounce of fluid