The best simple and fun tech value pack for beginners - create, connect and build your own experimental electrical and magnetic circuitry inventions. This electromagnetism, physics and math learner puzzle is simple to use and the perfect hands-on course to teach thinking, engineering skills and creativity outside of a classroom or school. Loved by teachers, parents and diy enthusiasts, and used as a development tool by educators in classes, summer camps and schools around the world. Specifications: Type: Circuit Experiment Kits Powered by: 2 x AA Batteries (Include) Applications: Physics Circuit Learning Experiment Due to different batches, there may be differences in product appearance and printed text, which will not affect use Colour: Green Material: Plastic Package Contents: 1 x Circuit Experiment Kits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.