Polydron Frameworks Basic Set - 280 PiecesPolydron Frameworks Basic is an advanced extension of the traditional Polydron system, offering 280 pieces designed to build larger, more complex geometric frameworks. It includes 160 equilateral triangles, 80 squares, and 40 pentagons, along with an activity booklet to guide exploration. This versatile set enables learners of all levels from beginners to advanced students to investigate spatial concepts such as angles, edges, vertices, planes, and