Eco Fresh Non-para Enzymatic Urinal Block With Enzymes, Cherry Scent, 2.5 Oz, Blue, 12/box

Freshens and cleans the urinal for up to 1,000 flushes. Block comes wrapped in water soluble film, no need to unwrap. Each flush contains powerful surfactants and chelating agents to eliminate odors at their source. You know it's working when you see the water turn blue.