Perfect size: Each pumice is about 5.9 x 1.4 x 0.9 Inches, perfect for your palm, making it easier and more comfortable to clean.Perfect size to help you clean edges and gaps for easy access, no more dead ends. Multiple functions: Our pumice can help you quickly and easily clean grease, stains, residues and dirt without scratching surfaces. Applicable occasions: Pumice stone is used in toilets to clean calcium deposits, limescale and hard water rings on toilets, sinks, bathroom tiles and other ceramic surfaces. It can also be used to remove rust and grease from grills and ovens.