This EXTRA SMALL ridged diamond geometric stamp will be a great addition to any leather worker's collection. This stamp impression measures 1/4" in length and 3/16" in width. See photos with a US quarter for scale. The crisp, clean impression you get from this tool will give your work a look of quality. Stamped on this tool is only the number, "S723". This tool should not be struck with a weighted maul. It is made of a light metal, likely zinc.