Nolan BF-4 Blue Flag, “Danger Men Working On This Track”
• 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
“Stop” and “Derail” flags are available with red or blue background. BF-2D and BF-9D flags are printed double-sided: all other flags are printed on one side.
• MODEL# : BF-4
• DESCRIPTION : "danger men workin g on this track".BLUE
• SIZE: 12"x15"
• weight: 2lbs.(1kg)