Le Creuset square baking dish 23 cm. New Exterior dimensions (including handles) are approximately 28.7 cm (11.5 inches) in length and 25 cm (9.8 inches) in width. Interior dimensions are typically 23 cm x 23 cm (about 9 x 9 inches). Material is premium stoneware, which is oven, broiler, microwave, and freezer safe. From non smoking pet free home