A Variety 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 Away Lime, Calcium And Rust Build Up From The Pool Tile Or On The Spa^Material: These Pumice Sticks Are Made Of Good Material That Is Odorless And Nontoxic, Do Not Absorb The Grease And Gunk, Safe For People, Animals, Plants And Water; It WonT Scratch Your Ceramic Tile And Metal; Easily Solve Your Stains And Troubles^Apply To: We Have Prepared A Large Number Of Cleaning Sticks For You, You Can Better Clean Your Pool, Kitchen, Barbecue, And Even The Toilet; DonT Worry, The Cleaning Sticks Have Enough Quantity; Let Your Life Be In A Clean Place^Suitable Size: Each Stick Measures 5.9 X 1.4 X 0.9 Inches; Easily Fit Your Palm To Make Your Cleaning Process More Comfortable^Precautions: Soak The Area To Be Cleaned And The Gray Pumice Before Cleaning, So That The Pumice Has A More Powerful Cleaning Function.^