Swanson MWOR61000 6-Inch Marking Whiskers Orange, 25-Pack Easily attaches to wooden stakes or 60-penny nails Virtually indestructiblewithstands lawn mowers, graders, and other heavy equipment Uniquely durable PVC fabric, vibrant, long-lasting Color APWA (American public works association) colors available Ideal for marking property boundaries, trees, landscaping, and underground Utilities