Kinetic 55078 6 Piece Glassworks Elements Square Food Storage Set with Vented Lids, Clear N/a Imported BPA Free and FDA Approved Set includes 3-17oz Square Glass Containers and 3 Plastic Lids Featuring a Vented Lid for Microwave Use; Patented locking 4 tab lid with silicone seal helps food stay fresh up to three times longer Oven safe up to 450-degrees Fahrenheit without the lid; Refrigerator and freezer safe; Dishwasher safe, top shelf recommended for lid Removable Silicone Seal for easy cleaning