◾ This is "Shin Work" for junior high school 1st grade science (based on Keirinkan). ◾ It's an A4 size, easy-to-write-in workbook, popular as a cram school exclusive material. ◾ It's an excellent and very popular science textbook for junior high school 1st graders, specifically for cram schools. ◾ The level is basic to standard, and also suitable for advanced study. It's a problem set with rich content aimed at improving scores on regular tests. ◾ Includes the textbook, answer key, and training, making it a great value. ※ Although it's a low price, the content is from a previous revision, but there are no issues with the topics. If there's no response after a while, it will be disposed of. It is not a damaged book. ※ I do not smoke, and I do not have any pets.