Cello Gripper is good writing pen. I like very much the writing of this pen. This pen is available in 3 colours. It give ultra fine handwriting. It is available everywhere. Cello Gripper is used in exam and many work of writing. This pen is used in India very much. Many children in India use this pen. It's tip size is 0.5mm. But this pen is available in market very high price. So Some students alike this pen and some people like this pen and used it in very important work. This pen is made by company, it is original pen. At the end of this pen has a company code. So this pen is the best pen. I like this pen and used.