• Powerful toilet detergent with hydrochloric acid. The disadvantage of frequent cleaning power is that discoloration and damage to metals and objects can be severe • Toilet craftsmen have the hydrochloric acid level cleaning power found by craftsmen cultivated in the field, but will not damage metal or objects • Formulated with ingredients developed in the field to quickly remove uncleaned public offices and other terrible messes • If you have trouble with the toilet, this is the perfect item. Dissolves urine stones and blackheads • Use with calcium stain craftsmen for a great synergistic effect