Features: IMPROVES GEOMETRIC UNDERSTANDING: This pull-to-build book introduces geometry in an engaging way, helping children understand the relationships between points, lines, and planes. It helps them understand formulas for volume and surfaces area, and develops spatial and mathematical thinking through interactive play. INSTANTS SHAPE-FORMING DESIGN: With a unique pull-to-build design, this learning tool makes geometry learning intuitive. Children can immediately see the relationships between different geometric elements, reducing the complexity of abstract concepts and making learning more accessible. RICH CONTENT VARIETY: The set includes various geometric shapes such as cubes, rectangular prisms, cones, and more. Three versions are available with 9, 12, or 15 shapes, providing comprehensive coverage of area and volume calculations USER-FRIENDLY EXPERIENCE: Designed with perforation guides, children can easily follow the steps to complete each model. This ensures a smoothing learning process, and allows children to successfully demonstrate their understanding of geometric principles through hands-on activities. SAFE AND SMOOTHING USE: Made of cored cord, this product ensures smoothing use without hurting hands. Safety and user experience are prioritized, ensuring that children can enjoy learning without risks. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Size: 29.7x21cm Package List: 1 Set Pull String 3D Geometry Learning Book