I've already tested some of openers. The last was a spartan cheap part, in which I really could open only with the greatest effort and with aching fingers a can. Because I now but required doses with no sharp edges for various handicrafts in, I looked around and decided to Rikon. The first box I got up and down geöffnet..der opener went so easily and the cutting edge was almost invisible, I thought I would not get open the can and they've turned over and set on the other side again. I was lucky that the content was not too liquid .... The opener is highly recommended. I hope he stays for long.