My wife and I have some arthritis in our hands and fingers. For those pull tab cans of soup, etc., this is a handy little helper. Just hook it up and roll the lid right off.
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I got this pair of incredible helpers about a year ago from Amazon, and have used them a zillion times. They open bottles with impossibly tight lids, by just slipping the tool (the one on the right) over the lid and giving it a twist; the two hooks on top pull tabs on cans , and the tool on the left is an opener for larger jar lids. Both tools together cost about $7.95!