Features: -The gel pens are manufactured with new thermal ink that is non-toxic and acid-free, does not fade or leak, and does not leave stains on your hands or paper. -It can be removed without leaving traces, and if you make a mistake, you can easily erase it with the tail eraser without damaging the paper. -The gel pens are available in 12 colors to meet your writing or painting needs. -The pen clip design prevents loss. When studying or working, just clip the pen into your school bag or pocket, and you can easily carry it with you. -Great for drawing, taking notes, handwriting bills, playing crossword puzzles, and more. .