I use it all up to something smaller than DIN A3 is to cut it, mainly for gift cards and packaging. After cutting, one can see the sections on the mat. This then begins to repair itself. That takes some time. However, the interface is not quite disappears. You see him, but interfere with further no longer cut. It is similar to kitchen cutting boards made of plastic. There you can also see each section, do not interfere with further cut. The board looks only not as nice. In the cutting mat, the cuts remain not quite so obvious. I did not expect that the cuts be invisible. The material of the can was found to my knowledge not yet been invented or. Who cares, it can try on a kitchen cutting board to cut glass. I recognize that in the kitchen and can no cuts on in spite of frequent use (almost every day). I use the mat as craft pad. It is also painted on it, and drawn geklebt.Bei glue and pencils I use only water-soluble, so I am on the safe side, I abbekomme it again if bib. Simply wipe with water. I am happy with the product.