Duralex Made In France OvenChef Oval Baking Dish, 16 by 11.5-Inch Dishwasher, oven, microwave and freezer safe; Hygienic non-porous glass Manufactured to withstand sudden temperature extremes from -4F to 266F and is suitable for hot or cold liquids Duralex tempered glass is 2.5 times stronger than ordinary glass; Glassware can go directly from the freezer to the microwave If broken by strong shock, Duralex shatters into small pieces, reducing the risk of injury Duralex glasses and bowls are stackable for convenient and space saving storage