Kills on contact. Kills for up to 16 weeks (Cockroaches, ants (excluding pharaoh and fire). Silverfish and crickets). No mess. Non-staining (Note: Check carpet manufacturer's warranty and care and maintenance information before using product on your specific brand of carpeting). Kills fast! Keeps keeling for up to 16 weeks. Against cockroaches, ants (excluding pharaoh and fire). Silverfish and crickets. Protects your home from ants & roaches. Guaranteed to work or your money back (For terms of guarantee, see back. Guarantee: If you are not satisfied with this product for any reason, send your written request for a refund to the address below, together with the original dates store receipt showing the price you paid. Please allow 6-8 weeks for processing). www.blackflag.com. Questions or comments? Call 1-800-887-3524 or visit our website at www.blackflag.com. Contains no CFCs or other ozone depleting substances. Federal regulations prohibit CFC propellants in aerosols.