Saying "is easy to write it"; this pencil of the reputation. The core which writes it, and creates a feeling that the secret is fluent. A particle decides it, and it is thin, and the voice that paper and a pencil fit it and are easy to write quickly is asked. I write it till the last, and the good feeling does not decline even if I write it even if I write it.
In the that the core has the softness, but there is enough strength, and pressure of the pen is high in ideally. As for the voice, "this pencil is most suitable in the case of the mark sheet test to perform at school" among them. A student makes a captive secretly, too.