12 different size glass food storage container with lid: 4 rectangular cap, 21oz, 13oz, 6oz, 4 square cap7oz, 17.5oz, 11oz, 5.5oz, 4 round cap1oz, 21oz, 12.5oz, 7oz Eco -friendly alternative for plastic: High quality borosilicate glass containers with lids are a and sustainable choice. Unlike ordinary plastic containers, our food preparation glass containers are not toxic, 100 %BPA contains, durable and resistant to breakage. They do not absorbs food or stains and are easy to clean Air -proof locked covers: It is designed with glass containers for food storage, removable silicone gaskets and 4 hinged locks to ensure that there is no leakage or shedding, it is easy to open and close these covers. It is used for preparing glass food containers with lid, office lunch, residues, portion control, taking it to the gym, picnics, travel and more Furnace/Microwave Oven/Freezer/Safety for the Dishwasher: Glass container -4 ℉ to 752 ℉ (-20 ℃ -400 ℃) can withstand the temperature, which makes the passage from the zer to the microwave or the oven effortlessness, covering glass food preparation containers are stacked together and occupies less space. Furnaces, microwaves and dishwashers are not lid -friendly, please remove the lid before heating or washing the food High -level Customer Service: If you have any questions from reusable glass food preparation containers with lid or not satisfied, please the seller via . Our customer team is at your 24/7 to help you