This 11-inch enameled skillet is great for cooking on gas, electric, ceramic and induction cooktops, as well as in the oven. Not recommended for use on outdoor grills or over open outdoor flames, nor in the microwaves. The use of vegetable oil or cooking spray is recommended for better cooking and clean up. Select low to medium heat when cooking on stove top, and never heat an empty pan. Use of wooden or silicone utensils is recommended. Lodge color-porcelain enameled cast iron cookware is cast from molten iron in individual sand molds. The porcelain surface eliminates the need to season cast iron. The cast iron vessel has superior heat distribution and retention, evenly heating bottom sidewalls and even the lid. Tightly fitting lid seals in moisture. (Note: Lid is not included with this skillet.) The excellent heat retention reduces the amount of energy needed for cooking. Two layers of very hard, glossy porcelain enamel are chip-resistant and easy to clean. The black cooking surface on the skillet is matte porcelain, not exposed cast iron. Hygienic porcelain enamel is non-reactive with food. Although dishwasher safe, hand washing with warm soapy water is recommended to preserve the cookware's original appearance. 11-inches in diameter, this skillet is 1-3/4-inches deep.