The Snap Circuits SCL-175 Lights Electronics Exploration Kit is an educational toy designed for exploring electronics and electricity. Created by the reputable brand Snap Circuits, this kit allows children and enthusiasts to experiment with multi-color lights and learn about circuits in a fun and interactive way. With this kit, users can build various circuits and create different lighting effects, making it a great tool for learning about electronics and circuitry in a hands-on manner. I don’t know if this has ever been completely used, other than the fact that there were batteries in it, some of the parts are still sealed the battery packs look great though. Batteries not included.