Shinken Zemi Elementary Course Challenge 2022 Edition Kagaku Group, 2nd Grade Set of 12 books The cards attached at the end of the books have never been used. The books have been read by a child, so there are creases and wear on the covers. Inside, as far as I can see, there are no markings or stains, and they appear to be in relatively clean condition. ••••••••••••••••••••••••••••••••••••••••••••••• Please understand that these are used items stored at home. Please refrain from purchasing if you are overly critical or have a low tolerance for minor imperfections. Returns and refunds are generally not accepted. Please ask any questions you may have in the comments before purchasing. •••••••••••••••••••••••••••••••••••••••••••••••