I will say this about them....keep one pair for 'just' cutting pennies if you want to do that to 'show it can be done'. After a few years of showing that it can be done, the scissor will loosen up. It still does a great job of cutting, though it will show some difficulty in cutting 'paper' or another thin flexible object. A few pennies here and there aren't a problem.....I had friends who 'just couldn't do without' the cut penny so I had cut a lot of them.....only after dozens does it become a problem.....and no I didn't cut "my" pennies....I used theirs.