Meets MUTCD and ITE specifications,3-way - flashing, steady burn, off. 7" Polycarbonate Lens - extremely durable. UV Stabilized, diameter 7" Snap-lock case and breakaway LED and moisture proof circuit, Batteries not included requires 2ea 6volt batteries to operate Weather resistant circuit chip. LED light ( 4000 hours operate), Barricade lights bolts mound included to attach with barricade drums Attach to all barricades, drums, panels, etc, bolts included Premium RK Safety Barricade lights Polycarbonate Barricade Light