Highlights The discount fade pen adopts special ink, not only maintain good flow characteristics, but also for clear writing. As long as use the rubber in the end of pen, gently wipe the part to correct that can make typos disappeared without trace, & it does not produce any flock. After writing at temperature above 60 degrees where the ink will disappear. When the temperature is below 20 degrees, the writing will be restored. Able to doodle on paper, clothes, sheet, furniture, wall & any other smooth surface. The handwriting disappears without any mark within 4-24 hours. Higher the temperature, more quickly it disappears. As advanced water decomposition technology is adopted, the pen is non-toxic, harmless & pollution-free. Specifications Shipping Weight (Kg):0.0324 Dimension (CM):16.3 x 4 x 1.7 Package Contents 1 Ink Disappearing Pen