PoolSupplyTown Pumice Stone Rust Spot Stain Remover Eraser for Plaster Concrete Pool Spa<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Pumice stone with easy-clip handle for using with telescopic pole</li><li>Works fast as a surface lime remover; cleans even when the strongest acid chemicals have failed</li><li>Ideal as a spot cleaner for rust marks， algae， and leaf stains</li><li>Wet then rub stained or scaled surface until clean</li><li>Effective when using with water or acid</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Cpn-%2BBwyL.jpg" noproxy>