201 Thank you for viewing! Actual product images available ◎ This is a teaching set for math and mathematics that allows you to visually learn the three-dimensional structure and development diagrams, which are difficult to imagine in your head, while actually assembling them. It is very useful for learning three-dimensional shapes and surface area starting from the 5th grade of elementary school, as well as for tackling difficult problems in junior high school entrance exams. Covers 8 types of basic solids: Includes all major solids such as cube, rectangular prism, triangular prism, cylinder, cone, and sphere. "Development diagrams" are visible: You can create them by combining nets (development diagrams) and frames, so you can clearly see "which face connects where." Intuitively understand the surface area formula: The instruction manual also includes the calculation formula for surface area, allowing you to learn theory and practice together. Fun to assemble: You can assemble it like a puzzle, so you can get familiar with the figures without feeling like you're studying. 【Set Contents】 • A set of frame parts for solid models • Development diagram sheets for each solid • Instruction manual (with illustrations, written in Chinese, but easy to understand intuitively as the main focus is on diagrams and formulas) 【Case Size】 14 x 18 x 4 cm 【Supported Solids】 Cube, rectangular prism, parallelepiped, triangular prism, tetrahedron, cylinder, cone, sphere 〜About Discounts〜 Bundle discount available ◎ You can save on shipping! Please feel free to contact us ☺︎ ★About Shipping★ We will ship in simple packaging to provide it at a low price. ⚠︎Please Note⚠︎ ⚫︎There may be fine scratches, slight fraying, loose stitching, and errors in shape and size. Please purchase with your understanding. ⚫︎We open the items in the bag once for inspection before shipping. ⚫︎The colors on the screen may look different from the actual product. ⚫︎Please note that there may be slight errors due to amateur measurements. ⚫︎If there are any defective products, please contact us before evaluation. We will respond sincerely. Please feel free to comment if you have any questions ☺︎