This is The Cube, a recommended educational material from SapiX. Contents: 1) Cube blocks: 9 types 2) Development diagrams (with cut lines): 9 types 3) Development diagrams (blank): 11 types 4) Hard clear case: 1 type 5) Instruction manual All of the above accessories are included. [Condition] The acrylic development diagrams, which can be written on with water-based pens, have no writing on them. Used only 2-3 times, with no noticeable stains or scratches. Please consider this a used item that has been stored at home. "Quote" Curiosity honed through "embodiment" through the five senses. "The Cube" "The Cube" is designed to cut cubes from various directions and make it easy to see how the shape of the cross-section and the cut corresponds to the development diagram. It is an educational toy that didn't exist before, made of hard rubber, with magnets embedded in the brightly colored cut surfaces. In addition, the 11 types of transparent vinyl development diagrams and the acrylic case can be widely used to understand actual exam questions. Cube size: 3 x 3 x 3 cm Set outer dimensions: 14.5 x 10 x 4 cm