Item DescriptionLabelmaster's self-sticking, outdoor-grade vinyl, National Fire Protection Association (NFPA®) Number 2 Labels can be quickly applied to NFPA labels and signs to identify numerical hazard ratings for health, flammability and instability and comply with NFPA 704. NFPA numerical ratings communicate to emergency responders the degree of hazards associated with a chemical during a fire or spill emergency. The 3-in., die-cut, black labels are legible from a distance of 100 feet and are sold in packs of 10.