Kinetic brings you the best in food storage organization with their stylish and unique Glassworks series designed for reheating leftovers and convenient refrigerator/freezer storage BPA Free and FDA Approved The durable 44 piece Glass Food Storage Container Set includes 22 Containers and 22 Lids in a variety of shapes and sizes to meet all your storage needs! There are 4-14oz, 4-30oz, and 2-54oz Rectangular containers as well as 2-15oz, 2-35oz, Square containers and 4-13oz and 4-28oz Round containers Glassworks features a plastic lid with a four tab locking system with a silicone seal that creates an airtight/watertight seal keeping foods fresh longer than ordinary food storage solutions The containers may be used in the oven up to 450? Fahrenheit without the lid Freezer, refrigerator, and microwave safe without lid attached; the stain and odor resistant set promises easy cleanup in the dishwasher (top rack recommended for the lids) Bake or reheat food and take the container directly to the table This simple and elegant design keeps kitchen leftovers organized neatly and with a minimum of fuss Stackable durable containers optimize your storage space in the refrigerator or cupboard and also nest to save space 1 Year Limited Manufacturer Warranty Imported