The Kilner Regular Mouth Glass Preserve Jars easily store and preserve home grown foods. Each 500 ml jar features a 2-piece lid system, including a tin disc and screw band, creating a vacuum seal to keep contents fresh. Made from soda lime glass, these jars offer clarity and consistent wall thickness. They are the perfect size for jams, chutneys, and small pickled fruits. The glass jar is dishwasher safe, while the disc and screw band should be hand washed and dried immediately. They are BPA-free and resistant to odours, flavours, or stains. Each pack includes six jars with lids.