Harpic Platinum Active shield combines the powerful stain removal of Harpic with revolutionary stain-resistant technology that prevents stains from sticking by forming a protective non-stick layer and keeps your toilet cleaner for longer. Use the New Harpic platinum active-shield for a toilet that is not just clean, but also stays clean, for up to 100 flushes! Always use Harpic toilet cleaner separately. Do not mix with other products.