Keep your toilet thoroughly clean and fresh with this pack of two Bloo Lavender Toilet Bocks. Part of the in-cistern range, it cleans, protects and helps prevent limescale build-up from the toilet cistern to the bowl. Its ball design and patented technology give you a fresh and clean toilet bowl after every flush. The liquid toilet cleaner cleans the bowl, removes limescale and leaves a long-lasting fragrance. Size: 2 x 38g. Usage: Each black lasts up to four weeks. Safe to use with septic tanks and all other toilet cleaners. Do not use in porous, crazed or cast­iron cisterns. No need to remove the water-soluble wrapper. Drop the block into the cistern at the opposite end of the water inlet. Allow 10 minutes for the block to settle.