Vintage American-made casserole dish. Inner diameter: Approximately 17cm x 17cm Height (excluding lid): Approximately 6cm About Pyroceram: ● Can be placed directly on a heat source. It won't break even if heated empty or placed in cold water. You can also cook food that has been home-frozen by placing it directly on a gas range. ● When using directly on a heat source, cook over medium heat or lower. When the food is about three-quarters cooked, turn off the heat and use the residual heat. This saves on gas and prevents burning. ● It is heat-resistant and allows microwaves to pass through easily, making it ideal for microwave cooking. ● It has good heat retention, so it doesn't cool down easily. You can serve food directly from it and enjoy warm dishes for a long time. ● Freezing/Storing → Cooking → Dining table - it serves three purposes in one. It takes up only one-third of the effort and space, creating a fun dining experience. ● It can handle any type of cooking, such as boiling, baking, and steaming. ● Because it's square, you can neatly arrange meat and fish of the same size, and it's also excellent for storage. ● The smooth surface prevents odors and residue from remaining, so you can keep it clean for a long time.