These Micro Card Knives have been deeply etched to produce an embossed pattern. These were very labor intensive to create and took several hours to get an etch this deep. Only 3 made for now. The steel is S30v and they measure 1.5" wide by 1" tall, stock is 3/32 thick so they are nice and light on your keys. Comes with a nifty side pull kydex sheath.