Ball 16 oz. Freezer Jars are easy-to-use and ideal for freezer jam, freezing/refrigeration of leftovers, and storing fresh fruit & veggies. Use them for storage or portable lunch containers. Designed with EverSeal Technology, the flexible lid structure eliminates leaks, while the soft touch rubber makes it easy to put on and take off. Measuring & lines provide accurate portion control and help determine liquid levels for expansion during freezing. BPA-Free. Dishwasher and Freezer Safe. Includes two 16 oz. Freezer Jars and Lids.