This is a study guide for the Class 4 Hazardous Materials Handler exam. I purchased it new from a bookstore around March 2024, so I am the original owner. It comes with a separate booklet containing practice questions and 4 mock exams. By repeatedly working through this study guide, you'll be in the passing range if you score 60% or higher on each section of the mock exams on your first attempt. However, as a guideline, you should aim for 80% or higher on the mock exams, as you might only barely score 60% on the actual exam. In any case, let's thoroughly study the practice questions so you can score 80% on the mock exams on your first try. Regarding the condition of the product, I am the original owner. There are no markings. The mock exams are in a separate booklet attached to the back of the main book, and there is some tearing from removing it. However, it shouldn't be a major issue. Please check the images. Please refrain from purchasing if you are overly concerned about the condition. I passed the June 2024 exam, so please use this study guide as a lucky charm. "U-Can's Class 4 Hazardous Materials Handler Practice Question Collection, 4th Edition" U-Can Hazardous Materials Handler Exam Research Group / U-Can Hazardous Materials Handler Exam Research Group Price: ¥1400 #U-Can Hazardous Materials Handler Exam Research Group #U-Can Hazardous Materials Handler Exam Research Group #Book #Nature/Chemistry