The Kilner Canning Jar is perfect for storing and preserving healthy, home grown foods. The set of 6 makes allows you to can and preseve multiple batches at once. Featuring a two-piece lid system which comprises of a tin disc and screw band ensuring a secure vacuum seal is achieved, keeping the contents fresher for longer. The jar's capacity makes it the perfect size for canning jams, chutneys and small pickled fruits. Each jar embodies the traditional Kilner styling with the authentic embossed logo and contains a detailed instruction leaflet inside. Kilner Canning Jars are made from high quality sodalime glass material with pristine clarity and consistent wall thickness ensuring no weak points. The glass jar is dishwasher safe. The disc and screw band should be hand washed only and dried immediately."The Kilner 17 Fl Oz Canning Jar is perfect for storing and preserving healthy, home grown foods. The set of 6 makes allows you to can and preseve multiple batches at once. Featuring a two-piece lid system which comprises of a tin disc and screw band ensuring a secure vacuum seal is achieved, keeping the contents fresher for longer. The jar's capacity makes it the perfect size for canning jams, chutneys and small pickled fruits. Each jar embodies the traditional Kilner styling with the authentic embossed logo and contains a detailed instruction leaflet inside. Kilner Canning Jars are made from high quality sodalime glass material with pristine clarity and consistent wall thickness ensuring no weak points. The glass jar is dishwasher safe. The disc and screw band should be hand washed only and dried immediately."