Auto-Vanishing Pen——Writing disappears spontaneously. Erasable easily and quickly by water and Eraser. Can write on paper, cloth, wool, wood, plastics etc.
Auto-Vanishing Pen——Writing disappears spontaneously. Erasable easily and quickly by water and Eraser. Can write on paper, cloth, wool, wood, plastics etc.
褪色笔——书写后在一定时间内自动消失，也可使用专用消色笔或清水即刻消去。