Engrave your glass items, equipment, tools, keys, racks, and just about everything in your lab and plant. Can be used to permanently mark glass, plastic, wood, metal, bone, andstone. This cordless battery-operated engraving tool is held like a pen, press the button, apply light pressure to write. The markings will not fade if exposed to chemicals, sunlight or extreme temperatures. It operates on two AA batteries and comes with an extra tip. The compact polypropylene stand, which is sold separately, holds the engraving tool and the extra tip.