Difficult to remove deposits can form in any toilet. Problem soiling such as persistent scale, uric scale, or other difficult to remove deposits occur on the inside of the toilet pan, but also in the neck or invisibly under the rim. The dirt under the rim means the toilet is never hygienically clean, which can cause a musty odour and it reduces the flush action of the toilet. The especially developed formula of HG Super Powerful Toilet Cleaner adheres to the surface of the toilet pan and ensures an effective removal of all problem soiling. A must-have powerful toilet cleaner in any household.