Bref Color Auto Active Rim Block Toilet Bowl Rim Hanger with Eucalyptus and 100% more cleaning power* The Bref Color Auto Active hanging toilet cleaner rim block has enzymatic cleaning technology, which keeps your toilet sparkling clean while releasing a long-lasting freshness. After every use, experience cleaning power with the added benefit of Eucalyptus. See visible cleaning as the water turns blue and a long-lasting fresh scent fills the bathroom. Bref Color Auto Active toilet rimblock has a 4-function formula: 1. Continuous cleaning foam cleans the toilet non-stop even between flushes. 2. Blue Water and foam make cleaning performance clearly visible. 3. Anti-Limescale protection prevents limescale formation. 4. Extra Freshness leaves a long-lasting fresh scent in the bathroom. Easy to use: Simply hang the scented toilet rim block on the rim of the toilet bowl and adjust it to the water flow. Get it activated with the first flush to experience cleanliness and freshness in the bathroom. Check out the other variants from Bref Color Auto Active collection, Chlorine, Flower, Ocean and Lavender, to discover new scent and Color Auto sensations. The blister is made of 98% recycled plastic. Bref formula is 95% biodegradable and we use 100% renewable electricity at our production plant where we have zero production waste to landfills. *against organic dirt compared to other Bref rim blocks