The Undo It Jar Opener is an excellent example of a very simple design providing the perfect solution to one of life\'s everyday problems.This very easy to use V-shaped metal jar and bottle opener has a non-slip lining and has been designed to be easily but securely and conveniently fitted underneath a kitchen worktop, shelf or kitchen cupboard. Once fitted the Undo It Jar Opener is easy to use, simply slide the jar or bottle back into the opener until the lid is wedged, then twist as normal to undo the lid.NB. Please note screw fixings are not included