Ed.Inter 3D Puzzle Includes a text book with 110 example works Purchased from Shichida. This is a 3D puzzle from Ed.Inter, also used as teaching material. This is a new version with each block separated, making it easy to see how many blocks are used, which is very helpful for geometry problems. There are minor scratches that are not very noticeable, so please refrain from purchasing if you are sensitive to such things. The box has some damage. Retail price: 3300 yen Price negotiations are not possible. Please be sure to check my profile. Ed.Inter Kenjin Puzzle Gift of Knowledge Block Shichida Shichida Method Brain Training