Erase the fear of making mistakes, with the Unicorn erasable gel pen! Using its Black heat-sensitive ink, you can erase any mistakes by simply rubbing them with the plastic sphere set at the end of the pen. The tip of the pen has a diameter of 0.7 mm and a nib of 0.35 mm, this attractive pen is perfect for all kinds of uses, at school, in the office and during leisure time.