Scraps of natural-colored cowhide leather. The first photo shows the entire amount. 500 grams. The white paper underneath is A4 size. These are scraps of similar sizes, possibly from something in progress. Thickness is 2-3mm. This is thick and sturdy leather. There are some pen marks and scratches, but it's still beautiful leather. Dyeing and stamping are possible. It has a slight sheen, so the color may not come out as well with dyeing.