"Snap circuit’s arcade uses building pieces that snap on a simple "rows-and-columns” base grid that functions like the printed circuit board found in most electronic products. Each component is easily identifiable by a different color and functional purpose. This STEM kit includes over 200 projects that utilize 30 components. Includes projects like an internal micro controller that is pre-programmed with lots of fun to play interactive games, a programmable word fan, a tri-color light orb, and a dual-LED display. The snap circuit’s arcade building sets offer concrete, STEM/ steam concepts with fun learning activities and creativity. Learn the basics of electricity, engineering, and circuitry with full color, curriculum-rich, easy-to-follow instructions.requires 3 AA batteries (not included).snap circuit products were created to provide a fundamental, hands-on education in how electrical circuits work to run everyday devices. All parts mount on plastic modules that snap together with ease. Young engineers will have hours of educational fun learning about electronics and how to build circuits. The circuit safe patented safety device (unique to Snap Circuits branded products) makes learning circuitry safe.snap circuits products have won many awards, including toy of the year (toty), Austria's best toys for kids, parent's Choice Recommended, good housekeeping's best toy, family choice, National Parenting publications awards (Nappa gold), children's choice, Dr. Toy (100 best children's products, 10 best educational products, Green toy company), the inaugural seriously STEM award & Kapi award.snap circuits is endorsed by Educators worldwide and used in schools, libraries, museums, and stem programs."