Learning Reference Book Set to Cultivate the Ability to Research Independently (List Price: ¥12,000 + tax equivalent) - Title: Elementary School Japanese Language, February 19, 2018 - Title: Elementary School Science, April 19, 2018 - Title: Elementary School Mathematics, February 19, 2018 - Title: Elementary School Social Studies, August 14, 2017 - Target Grade Level: Grades 3-6 - Features: Learn independently, deepen, broaden, and understand knowledge - Publisher: Gakken Thank you for viewing. I purchased these new, but they were mostly unused and stored at home. There is some writing on the first page of the math drill. There are scratches, scuffs, and yellowing due to aging and amateur storage. You can purchase immediately. Please understand that this is amateur storage and inspection. This is a used item. Thank you for your understanding regarding the above points.