Spur Track Guardian sign holder with solar light features a hand-lifted hinged sign holder with blue sign plate, and a blue solar powered flashing blue light with mounting bracket. Shock-proof and NEMA-4X rain and dust proof. Gravity switch activates light when sign holder is at 45 degree angle or greater. Brilliant 6-LED light visible for over a mile. Blue 12-inch x 15-inch and 0.080-inch thick aluminum sign plate. Choose your sign wording: STOP, STOP - Men at Work, STOP Tank Car Connected, STOP Crew at Work, STOP Car Connected, STOP Employees Working, DERAIL. Weight: 25 pounds. Product of Aldon® Company.