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. Recommended age 3+ years