Domex Sparkling Fresh Disinfectant Toilet Cleaner with revolutionary Odour Block technology blocks malodour for up to 3 days, while ordinary toilet cleaners are effective only for 1 flush. It forms a protective layer on your toilet commode/ceramic surface, repelling any fluid that can cause bad smell and stains, thus making your toilet fresh for up to 3 days. It contains a powerful formula which removes limescale and tough stains instantly from the toilet surface, leaving it sparkling clean and fresh. Domex Sparkling Fresh Disinfectant Toilet Cleaner provide