Don't buy
the 1st time I used the works it made my toilet exceptionally clean, it completely removed every hard water stain clean and when I bought it again I was so disappointed! The dark blue color of this product was now pale blue and it didn't cling to the inner toilet like it used to and the hard water stains are bad again because the works has been so Diluted it no longer works
Theresa1018
Tucson Az