It has been published in Nikkei Sangyo Shimbun of today 3/20 published.
On the page that introduces the new product, I was allowed to evaluate and comment on this spring was released sharp pen.
Because I think probably not to the other shop, please visit the electronic version and libraries.

Information

Nikkei Sangyo Shimbun
https://www.nikkei4946.com/syoukai/ss/