Made of durable, flexible plastic, each GeoModel Folding Net folds into a different 3D shape. Demonstrate shape properties and relationships, and enhance spatial reasoning skills in measurement, volume, and surface area. Each set includes a teacher's activity book, 4 write-on/wipe-off activity cards, and 11 nets (cone, cube, cylinder, hexagonal prism, hexagonal pyramid, pentagonal prism, pentagonal pyramid, rectangular prism, square pyramid, triangular prism, triangular pyramid).