Ingredients: Potassium mono-potassium hydrogen persulfate, sodium perborate, foaming agents (carbonates and organic acids), excipients, binding agents, oxidation activators, surfactants (sodium alkyl sulfoacetate)

Quantity: 3/6 pieces

How to use : 1. Put 1 piece of product into the water at the bottom of the toilet and leave it for at least two hours.

2. After soaking to remove stains, rinse with water