Build prisms, pyramids, Platonic solids and Archimedean solids. Contains Mini Geofix triangles, squares, pentagons and hexagons in a handy storage tub. Includes 10 double-sided plastic workcards with numbers and 2D models scaled1:1. This versatile building system is designed to help learning skills and spacial awareness by converting 2D to 3D solids. Made of tough polycarbonate which easily snap together. Ages 3 years to adult.