Set of 3 Heavy-Duty Scouring Stones

Remove the rings from the porcelain fixtures in your kitchen or bathroom with this Set of 3 Heavy-Duty Scouring Stones. It's the quickest and easiest way to get toilets and sinks clean without harsh chemicals. Safe and convenient, it won't scratch your surfaces. Just wet and rub, and the deposit disappears. It even removes rust stains.