Glasslock Oven Safe containers are made in Korea from durable tempered glass, three times stronger than standard glass and completely BPA-free | Versatile design allows use in the oven (up to 230DegreeC), microwave (without lid), fridge, and freezer (down to -20DegreeC) | Easy to clean by hand or on the top-shelf of the dishwasher | Airtight, leakproof silicone seal with four locking tabs keeps food fresh and transportable | This 1650?ml square container is perfect for marinating meat, storing and reheating leftovers, transporting meals, and serving dishes