"乙種第4類危険物取扱者すい～っと合格 10日で受かる!" (Otoshu Dai 4 Rui Kikenbutsu Tor扱い者 Suii~to Goukaku 10 Nichi de Ukaru!) - Pass the Class 4 Hazardous Materials Handling License Easily in 10 Days! Kenjiro Motoyama Price: ¥1600 The cover is slightly faded and has minor scratches due to home storage, but it is unread and unused. Thank you for looking.