Unglazed stoneware Fits in most microwaves and toaster ovens No preheating-just place food on Stoneware and cook Amazing heat retention Moisture is drawn away from food for light and crispy results Won't retain oils, odors or flavors Nonstick "seasoning" builds up with every use: the darker it looks, the better it cooks! Microwave-, freezer- and conventional and convection oven-safe. Made in the USA. Hand wash. 9" x 6¾" x 1¾" Only used one or two times. No Box. Slight scuffs- please see pictures.