Long products familiar, of platinum, renewal by improving the weaknesses as it is goodness of conventional "pen scoring the teacher!" It is economical because there is chips and glue and ink and glue. Even in a large amount written, such as character writing and [Features] and scoring system, intact, and the good of platinum soft traditional pen that is very well received in nylon chip durable was renewed by improving weaknesses. To improve the strength and durability of (1) clip! I adopt the cover structure to prevent (2) ink leakage! With volume up (3) body, and reduce fatigue in scoring writing of a large amount!