Lineon 15 pack black erasable gel pen set contains 15 pens, all with black erasable ink. 0.7mm tips are great for writing, sketching and so on. Each gel pen is fitted with eraser at the top end and retractable by pressing the side clip down.They write like gel pens and erase like pencils(Please erase after the ink has dried completely),you can use them smoothly without worrying about any mistakes, just erase errors out with the rubber at the top of pen ,no residue and no damaging documents! Each Gel Pen is fitted with comfortable grip ,you can use them without fatigue. It is really great for everyday use.