Environmentally-friendly, biodegradable extended-action formula, keeps toilet bowls fresh and clean. Removes and eliminates stubborn soils, dirt and grime. Thick application clings under the rim to break down stains for long lasting protection. Works well on ceramic and porcelain surfaces. Application: Toilet Bowls; Applicable Material: Ceramic; Porcelain; Chemical Compound: N/A; Material(s): N/A.