Pumice stone for toilet clean calcium sediment, limescale, and hard water rings on toilets, sinks, bathroom tiles, and other ceramic surfaces. It can also be used to Remove rust and Oil stains from grills and ovens. Our Pumice Cleaning Stone is made with 100% natural pumice.Our pumice is chemical-free, non- and eco-friendly, odorless, safe for animals, people, plants and water. of functions: pumice sticks can be applied to clean tile, to clean bathroom and kitchen, remove hard water rings, clean rust from grills; Besides, use them to clean and scour , calcium and rust build up from the pool tile or on the spa Apply to: we have prepared a large number of cleaning sticks , you can better clean your pool, kitchen, barbecue, and even the toilet; Don't worry, the cleaning sticks have enough quantity; Let your life be in a clean place Please wet the pumice stone before using it. It can be sharpened into different shapes to clean the narrow edges and corners The pumice stone aslo can be used remove , safe for people. SPECIFICATIONS: Dimensions: 5.9 x 1.4 x 0.9 inches Manual: Wet the stone before use it and scrub the surface gently and slowly color: grey Material: foam glass Package Contents: 24 x cleaning tools Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.