Cortina 95-03-009 3 Piece Triangle Warning Kit Interior strips of molded fluorescent plastic provide effective warning for daytime use Acrylic plastic strip reflectors, hermetically sealed and impervious to dust and moisture, unfolds to a triangular shape and are held firmly in place with a sturdy locking device Easy to erect, single triangle flare unfolds from a weighted blow-molded tube that serves as a base and is equipped with non-slip foam pads