This pen works wonder. Really, I used it in my boards examination and its quality is just soo good that I think I will make it my permanent and write everything with it. It has really good ink, waterproof , instant dry , no smudging and all. It also have an amazing designed and comfortable grip that it can increase your writing speed. It helped me completing my exams much earlier because of the increased speed and was really effective for me. Its also inexpensive as many other pens with such quality are way more expensive.