Glass Lock's range of everyday glass food storage containers are perfect for everyday use and are conveniently fridge, freezer, dishwasher, and microwave safe. Made from high-quality non-toxic BPA-free glass, each container features an airtight and leak-proof lid. The transparent and clear glass designs make it easy to identify the contents of the containers when storing in the fridge, freezer, pantry or when reheating in the microwave or oven. This square container is ideal for heating or cooking in the microwave or oven (230 degrees Celcius), serving, and storing in the fridge or freezer. Stackable design for easy storage 405ml capacity Measures 11.5cm x 11.5cm x 5.7cm The airtight, leak-proof lid ensures no spillage Microwave safe (without the lid) Oven safe to 230 degrees Celcius (without the lid) Dishwasher safe (top rack only) Freezer safe Stain-resistant and nonreactive