For cleaning stubborn deposits and stains on porcelain, ceramic tile, concrete, and iron. Contains no harsh chemicals or detergents. Great for use in the bathroom or kitchen. Dimensions: 5.25 x 1-1/4 x ¾ inches. Pumice.Product featuresPUMIE SCRNG STCK ALL PRPS PMC HVY DTY BOXUnited States Pumice HDW-12T Heavy-Duty Scouring Stick: For kitchen, bath, workshop and outdoors This toilet bowl scouring stick removes unsightly toilet bowl rings, stubborn stains in tubs, sinks and showers and rock hard mineral deposits around faucets and drains Length: 1-19- Width: 5-19- Height: 5-5 SKU: JNSN66292 Special FeaturesNon-toxic and safe around family and pets