Stoneware, hand built. A great dish for roasted fingerlings, jasmine rice, quinoa salad, sweet potato with marshmallow topping, to name a few! Ovenproof, start from a COLD oven. Microwavable, if you turn off the rotating feature, it will get HOT, so be sure to use an oven mitt. 9.5”W X 12 3/4”L