Magnetic construction set, with 62 pieces (30 squares, 20 triangles, 12 pentagons). Includes step by step idea booklet, showing how to turn 2D shapes into amazing 3D models. Easy and simple to use the rotating magnets sealed in every edge always attract and never reject making construction for young hands simple and fun. Build geometric shapes like a rhombicuboctahedron, dodecahedron, and other mathematical structures. Compatible with all other Magformers shapes and accessories. Has a 100% global safety record and has won over 50 global educational and play awards. <<< Magformers’ magnetic shapes always securely attach. Pieces are made from a specially-toughened ABS plastic and strong barrel magnets are safely sealed in the edges of each piece. But because they rotate due to Magformers’ Rotating Magnets System (RMS), they always connect and never repel when two pieces are brought together.