These Ball Quart Jars with Lids and Bands are made for fresh food preservation and more. Use these glass jars for crafting, canning, food storage and other household storage. The Ball Jars, 12-count, come in a corrugated cardboard box for safe transport. Because of the generous mouth, the Ball Wide Mouth Jars are easy to fill. Wide mouth works best with whole fruits and vegetables or when you need a large mouth for filling. The glass is clear, so you can see what’s stored inside. Bands can be reused. Jars are dishwashers and freezer safe. Note: When filling freezer safe jars, leave 1/2 inch headspace to allow for food expansion during freezing. Over 100 years of research, testing and advancing the art of fresh preservation go into every product we create.