■ Product Description Difficult School Past Exam Series Tokyo Institute of Technology Chemistry 20 Years [4th Edition] 2002-2021 Edited by Futao Ibe Mathematics Publishing Price: ¥2,300 + consumption tax ■ Condition As far as I could check, I didn't find any writing, folds, or stains. It's in a clean condition, but please consider purchasing it with the understanding that it is a used item.