Skeletal Starter Geo Set doubles as an introductory math manipulative for hands-on discovery of 2D and 3D geometry principles. Construction set which will improve children's fine motor skills, as well as develop their creative and problem-solving skills. Build two- and three-dimensional structures. Introduces children to basic geometric shapes. Model 2D shapes, 3D structures and inspire imaginative design with 20 double-sided activity cards. Set includes 80 sticks in 4 sizes and 4 colors, 40 connecting balls in two colors, 24 quarter circles, and 20 x 2-sided full-color activity cards in sturdy plastic container.