Use the squares and triangles to build your own solar creation and watch it spin! The GEOSMART Start Set includes 15 strong, bright geometric pieces, with a spinner to bring life to you kids' creations. An ideal STEM magnetic construction set that enables fun learning at home and in the classroom. Featuring bright colors, strong magnetic pieces and a patented double-safety system, this set offers unsurpassed safety and durability for endless creative play! Includes: 6 squares, 8 triangles and 1 spinner. (Ages 3 )