DISIWENE Pumice Cleaning Stone with Handle Toilet Bowl Cleaner Hard Water Ring Remover for Bath/Pool/Kitchen/Household Cleaning(8)Brand: DISIWENE Color: grey Features: Clean surfaces quickly and easily porcelain, hard water stains, pool tiles, flush toilets, barbecue grills, steel and stone. Removal of calcium, lime and hard water stains use gentle abrasive action to stubborn hard water deposits. Reduce scratches finer abrasives can reduce scratches. Guard your hands includes a heavy duty plastic handle to guard your hands. Stone size: 5. 25 inches X 1. 5 inches X 1. 5 inches