Boardwalk Deodorizing Para Wall Blocks are the perfect complement to Boardwalk urinal & bowl para blocks, designed to keep washrooms smelling fresh. Packed with a powerful fragrance that fights odors up to 60 days. Made of pure paradichlorobenzene; individually wrapped to keep scent fresh & contained. Each block includes a cardboard box for hanging that ship flat for easy storage & to prevent damage. Scent: Cherry; Physical Form: Solid; Application: Odor Control; Capacity (Weight): 24 oz.