Children can build their own 2D and 3D projects using the 58 durable plastic pieces found in this set. There are 30 sticks in three different sizes (13cm, 9cm, 6cm), 12 curved pieces, and 16 spherical connectors. The activity guide shows how to build a cube, rectangular and triangular prism, cylinder, and offers suggestions for a few other building projects. Let children build and discover new shapes and projects of their own.