Our 6 inch Marking Whiskers are an alternative marking choice for survey and construction sites, underground utility locating and many other uses. Virtually indestructible, these APWA color-coded Marking Whiskers spring back up when run over by lawn mowers, graders and heavy equipment. They are easily and conveniently attached to wood stakes or to 60-penny nails (not included). Sold per box = 1000 whiskers.