THE KILNER STORY: The original kilner jar, invented by john kilner and co, in england is as much loved and successful now as it was over 180 years ago. CONTAINS: This set includes 6 screw bands. DURABILITY: Made from quality tin metal, this item is hand wash only and must be dried straight away. SIZE: These screw top band replacements measure 7.2 cm in diameter, please note these replacement screw bands do not fit kilner wide mouth preserve jars however, wide mouth preserve jar replacement screw bands are available on our website.