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Primary School Mathematics Teaching Aids: Plastic small cubes, six-sided magnetic cubes, magnetic small blocks, magnetic building blocks, 3D geometric models, three-dimensional geometric objects, spatial thinking geometric models, assembly toys, children's educational mathematics aids, cognitive development early education toys, geometric teaching aids, six-sided magnetic blocks that freely attach to each other without repelling, with good magnetism, can attach to about 15 pieces vertically, made of new ABS environmentally friendly material, helpful for learning,立体王学而思 3D geometry teaching aid for education, helps develop children's brain and hands-on skills; available in multiple colors, color recognition, combined shapes, enhances intuitive 3D perception, problem-solving aid, cognitive development toys