SPECIFICATIONS： Color: Gray pumice cleaning stone； Material: Stone: pumice stone; Dimensions: 5.9 x 1.4 x 0.9 inches Package Contents: Pumice Cleaning Stone (Grey) x12 Pack Manual: Wet the stone before use it and scrub the surface gently and slowly Ideal Cleaner in Various Situations: 1、Toilet bowl rings 2、Stubborn stains in tubs, sinks and showers 3、Rock-hard mineral deposits around faucets and drains 4、 Scale and rust on metal work and piping 5、 Lime and algae deposits in swimming pools 6、 Rust and grime on workshop and garden tools 7、 Unwanted paint on tile, masonry and concrete surfaces 8、Pet hair from upholstered furniture and car upholstery PRYUEYOU After-sales service support: If there is any defect after receiving the product, or if there is any problem during use, please let us know at the first time, and we will provide you with a solution. PRYUEYOU After-sales service support: If there is any defect after receiving the product, or if there is any problem during use, please let us know at the first time, and we will provide you with a solution.