Smaller size allows enzymatic automatic toilet bowl cleaner to fit easily in a variety of tanks. Long-lasting toilet bowl cleaner provides freshness for up to 900 flushes. Increased surfactant concentration provides a thorough clean. Application: Bowl Cleaner; Applicable Material: Ceramics; Enamel; Fiberglass; Metal; Plastic; Vinyl; Dirt Types: Grime; Mildew; Mold; Organic Matter; Soil; Stains; Scent: Unscented.