ZEBRA Zebra Industry-Academia Collaboration Project New Spiral (Sharp 0.5) Clear Color Series Clear Yellow Brand new, unused, unopened This is an industry-academia collaboration series launched with the production of Professor Noda of Waseda University. It is a mechanical pencil from the popular New Spiral series. It seems that the author of Detective Conan, Gosho Aoyama, also uses it. No. 1099 Type... Mechanical pencil body Body material... Plastic