Pumice rubbing stone eliminates stains in seconds while protecting porcelain. Easily cleans flat or curved surfaces. Ready to use, gentle abrasive pumice stone removes lime, rust and stains when chemicals quit. Safe for hands and to use around children and pets. Scouring Pads/Sticks Type: Stick; Material(s): Pumice; Size (W x L): 1 1/4 in x 5 in; Color(s): Gray.