Kimberlin Wilder Rulers are
Made of titanium, steel, bronze, brass, copper and other materials. They are .20"
CNC engraved with a 4 inch scale on the front and a 7cm on the back which will make those markings and the wild illustrations permanent on each piece. There is also small hole for a paracord lanyard or keyring attach for folks who would like to carry their Wilder Rulers around that way.