Powerhouse para deodorizer for sewers, elevator shafts, dumpsters and water treatment facilities. Unique mesh hanger, safe for hanging. Fights odors for up to 14 weeks. Cherry fragrance. One block per box.Para block deodorants are air-activated, freshen the air, and eliminate undesirable odors. Made from paradichlorobenzene saturated with liquid deodorants. WARNING: This product contains a chemical known to the State of California to cause cancer.