Marking Flags White 6 Inch Package of 25 &ndash;Landscape Markers, Garden Markers, Track Field Markers, Athletic Field Markers, Survey Markers, Survey Whiskers, Stake Flags, Marking Whiskers, Garden Flags, Nursery Flags Package of 25 White 6" Trail Chasers Trail Chasers are perfect for marking your athletic fields. Trail Chasers are durable and highly visible ground markers. Flexible Whiskers will rebound after being crushed. Trail Chasers are easy to deploy, easy to move, and easy to retrieve.