This wheel thrown porcelain serving bowl measures 10" in diameter, 3 1/4" high. It has a bright, celery green interior and a stunning oil spot black glaze exterior. Oil spot glazes were discovered in ancient China. I think if you look carefully at the third photo, you can see the tiny abundant silvery spots that surface from the rich black glaze during the firing process. It is microwaveable, dishwasher safe, and food safe, of course! It is a very sturdy bowl, wheel thrown and fired to 2243 degrees for durability.