Jarkey Screw Top Jar Opener 5 "Genius !" Mr Kent 09 October 2019 I thought the glass jar lid removal problem, was as a result of manufacturers using 'gorillas' to torque the metal lids up on their glass jars ! I assumed the jarkey acted like an oil filter wrench to provide extra leverage. I was really sceptical about any success, but once the jarkey is placed on the lid, and lifted slightly, you can really hear the vacuum seal release on the jar ! Finally I can get at the contents of supermarket glass jars without all the previous effort, I wish I'd found this gadget years ago !