Calligraphy is the essence of Chinese culture. Practicing Chinese calligraphy help us calm, reduce working pressure, cultivate morality and optimize temper. Water writing cloth is the latest economic and practical product, it is made of sturdy material-Polyester Filament. When writing on it, you can see the same effect as rice paper, after several minutes, the writing will vanish and the cloth recovers to clean and dry as original, you may rewrite on it every few minutes. It helps us saving more paper and reducing pollution to environment. Parameter Water writing cloth size approx:L27 " x W18" Material: Polyester Filament Warnings & Maintenance 1.Please use clean writing brush (never soaked in ink) and clean water 2.The words appear immediately on the cloth and disappear after several minutes. Being clean and protective, it can be used repeatedly 3.Don't make the brush carry too much water 4.Don't pollute the cloth with colorful liquid, oil, sweat, saliva or any acid-alkali 5.Don't make the surface scratched by any sharp or hard things 6.Roll the cloth up when it is fully dried. Don't make it folded. Additional Details ------------------------------ Product description: Calligraphy is the essence of Chinese culture. Practicing Chinese calligraphy help us calm, reduce working pressure, cultivate morality and optimize temper. Water writing cloth is the latest economic and practical product, it is made of sturdy material-Polyester Filament. When writing on it, you can see the same effect as rice paper, after several minutes, the writing will vanish and the cloth recovers to clean and dry as original, you may rewrite on it every few minutes. It helps us saving more paper and reducing pollution to environment. Parameter Water writing cloth size approx:L27 " x W18" Material: Polyester Filament Warnings & Maintenance 1.Please use clean writing brush (never soaked in ink) and clean water 2.The words appear immediately on the cloth and disappear after several minutes. Being clean and protective, it can be used repeatedly 3.Don't make the brush carry too much water 4.Don't pollute the cloth with colorful liquid, oil, sweat, saliva or any acid-alkali 5.Don't make the surface scratched by any sharp or hard things 6.Roll the cloth up when it is fully dried. Don't make it folded.