Gold two piece jar caps match a range of 70 mm glass jars for the popular processes of canning, preserving, pickling, and more. The first piece of the jars caps is a threaded band that will screw tightly onto the glass jars and can be used repeatedly. The second piece is the plastisol lid that creates a hermetic seal when properly heated and cooled is constructed for one time use. For convenience, purchase each piece of these jar caps separately, or together in stock#6047-05.