precipitated me very good, good technology, clean edge that is not sharp, but the open the lid to be practiced according to the needs opening. But are extra devices at openers that I have not seen immediately and did not understand immediately what the are there. So as I said can opening is easy, just lift the lid as I still have to practice. The best thing is that the opener is designed so that the holding time. I had previously buy every 3 years new opener because the lid opening the can opener has the lid cut and after few hundred doses was dull and could open anything. Here, the cover is not cut, so it is possible that can be closed again, brilliant technique!