This Kilner Clear Glass Screw Preserve Jar is perfect for keeping all of your home made preserves fresh. With a unique screw top lid designed to create an air tight seal, this preserve jar keeps your food fresher for longer. It also has a sleek shape and traditional design which is sure to give your home made jams and pickles a professional look. The glass Kilner jar has been helping generations since the 1840’s to successfully preserve and store food. Durable and practical.