ids Electric Circuits kit can build 335 projects investigating alternative strategies.<br>Circuit Experiments Kits Included: Lamp,Fan,Door Bell,FM Radio,Burglar Alarm,Morse Code and more.Light,megnet,sound,water control are involved<br>Educational Science Toys Contains: over 31 circuit snap parts,each component has a code printed, circuit snap parts design, well-connected and no extra tools needed.<br>Circuit kits for kids to study sicence. Kids can have great fun and get familiar with circuits with real circuit components and clear illustrated manual.<br>Kids Science Kits require 2 x AA batteries required (not included). Age 8+ Recommend