Don't be stranded with a disabled car without one of our emergency warning triangles to warn drivers of your location long before they reach you at dangerously high speeds. The Auto Emergency Warning Triangle utilizes the universal signal for help for your safety. The fluorescent strips provide maximum warning day or night and require no batteries! The extra heavy weighted base complies with high wind tests and holds the fold-out reflective triangle in place, The attached reflectors are sealed from dust and moisture.