FINGER LOVE Gridded Magic Cloth for Practicing Chinese Calligraphy or Kanji Cloth Mat Writing Set (5PCS) Ink-free water-writing paper for practicing your strokes of Chinese calligraphy or brush painting Simply write on the surface with water and your strokes will come to life in dark Then, as the water evaporates, they will magically disappears leaving you with a clean surface - ready to be used again An environmentally friendly product. No worry of mess or ink stains while you do your drills and exercises Washable with none-bleach detergent or none-moiturizer soap. May an iron to flatten the crease