Kilner Wide Mouth Screw Bands Set 6 The Kilner Wide Mouth Screw Band replacements are designed to fit onto Kilner Wide Mouth Jars. The current sizes available are 0.2, 0.35 and 0.5 litre capacities. They are to be used in conjunction with the Kilner Wide Mouth Sealing Discs to create a perfect vacuum seal which will become airtight and leak proof, ensuring the contents are kept fresher for longer. Made from quality tin metal, perfect for all preserving requirements. Measuring 9.5cm in diameter. Hand wash and dry straight away. Set contains: 6 x Screw Bands Due to geographical locations we are unable to deliver to: Isle of Wight, Isle of Man and Ireland.