- Durable 20-gauge steel
- Weather-tough, baked enamel background with bold, white reflective letters
- Economical and lightweight
- Meet Federal Railroad Administration (FRA) rules and OSHA regulations
NOTE: “Stop” and “Derail” flags are available with red or blue background. BF-2D, BF-6D, BF-9D, and BF-12D flags are printed double-sided; all other flags are printed on one side only.