A 35-volume children's book series with the theme of science experiments. - Series Name: Experiment Showdown Series - Number of Volumes: 35 - Content: Themes related to science experiments - Target Age: Elementary school students - Language: Japanese - Illustrations: Manga-style illustrations Thank you for viewing. My child loved this series from the Kagaku-ru BOOK series and couldn't bear to part with it. Therefore, there is some fading (on the spine), wrinkles, splitting, creasing, and tearing due to age. There may also be unnoticed scratches, but I believe they do not interfere with reading, so I am offering them for sale. I would appreciate it if you could understand that these are used books that elementary school students have read, and I ask for your consideration. I would especially like to sell them to someone who will purchase the complete set. Everything in the photos is included (excluding the book stand). Please refrain from purchasing if you are overly concerned about condition. Please understand that these are used books, check the condition in the photos, and consider purchasing.