I am selling textbooks and problem sets ① and ② for studying for the Dangerous Materials Handler exam. I purchased them new, and they are unused and without any writing. I am offering them at a low price for those taking the exam. They will be shipped via Yu-Packet Plus. Since ① and ② are unused, I am listing them as "like new." ① Class A Dangerous Materials Handler Exam Textbook & Problem Set I purchased the 4th edition, 2014, new. It was an expensive book, costing over 2400 yen. ② Class B, Types 1, 2, 3, 5, and 6 Dangerous Materials Handler Exam Explains the key points for passing the exam and provides explanations of frequently asked questions. Purchased the 1st edition, 2017, new. It cost over 1500 yen. The following is included as an appendix: ③ Class B, Types 1, 2, 3, 5, and 6 Dangerous Materials Handler Exam Textbook & Problem Set I purchased the 9th edition, 2015, new and used it for studying. There is writing in this one.