6 PCS Cost-effective Pumice Sticks for Toilet Cleaning. Clean and Renew Your Toilet Bowls in Minutes! | These pumice stones can remove stubborn stains such as hard water rings, calcium, lime, and rust. | Pumice speeds up the cleaning process and effectively replaces chemical-based cleaning supplies. It can be used by itself, and works more effectively than these cleaning supplies. | Ensure safety: Made of recycled material (glass), eco-friendly and safe for your hands, children and pets. | Not satisfied? Enjoy free returns, direct refunds, and fully satisfying service!