Spark Up A Lifelong Love Of Learning With This Comprehensive Kit. Boys and girls will be amazed at just how easy it is to create over 50 electronic circuits simply by following our full-color, step-by-step instructions. It’s the perfect gift for curious kids, with seamless, solder-free components that are completely safe for young engineers, though adult supervision is recommended. Create a functional alarm, speaker, digital screen and more with 21 components, including a touch-sensitive switch, light sensor, magnetic switch and light-up gyrosphere. Requires 2 AA batteries, not included. Recommended for kids over 8 years old.