It is made of break-resistant polycarbonate (PC) material. It is not porcelain. Since our product is made of food-grade and break-resistant material, it ensures safety in use. It is heat resistant and suitable for washing in the dishwasher. Product Dimensions: 30x20 centimeters (cm). Product thickness: 3 millimeters (mm). It is compatible with microwave. It is suitable for dishwasher and hand washing.