This set includes 3 certified plastic-free food storage containers and lids, made in France from borosilicate glass with a silicone seal containing no petrochemical-derived materials. The ingenious glass lid doubles as a baking tray when the seal is removed, allowing it to be used for cooking. The removable seal makes cleaning easy, and the borosilicate glass does not retain stains or odors. These containers are stackable with lids for optimal storage, designed without handles to save space. Both the containers and lids are dishwasher-safe for effortless cleaning. Discover our set of 3 100% borosilicate Pyrex® glass storage containers designed to simplify your daily life. The particularity of these boxes lies in their versatility as they are ideal for storage in the refrigerator, freezer as well as for cooking in the microwave and oven thanks to their glass lid. In addition, these are also waterproof which means that your boxes can also accompany you when you travel, without the risk of leaks. You can prepare your meals in advance, store them safely, reheat them as needed, and even take them to the office or school. The exceptional quality of this dish lies in its manufacturing material, borosilicate glass Pyrex®. Resistant to extreme temperatures, from -40C to +300C, it can go from freezer to oven in complete safety. In addition, its resistance to thermal shock up to 220C makes it a reliable ally for all your culinary preparations. It does not retain stains or odors, thus preserving the purity of flavors. Our dishes are compatible with washing in the dishwasher, however we advise you to rinse them once under water before starting your cycle. Dishwasher, Freezer, Fridge, Oven, Microwave: without silicon seal