E-Blox Circuit Builder Learn all about electricity, current and voltage 72 different projects to build such as a nerve tester Includes a hand-crank generator, a press switch, lamp, LEDs, etc. Ages: 8+ The E-Blox Circuit Builder 72 Set provides hours of fun and educational play for kids 8 and up. The colorful building blocks have electronic components in them that, when assembled properly, will make circuits that generate electricity using a hand crank generator and test the steadiness of your hand. There are 72 different projects to build, and all parts are compatible with the Power BloxTM line to add even more fun to your building experience. Some of the fun projects you will build include a nerve tester and hand crank generator backup power source. 35 pieces, including a maze, hand-crank generator, press switch, push-button switch, reed switch, lamp, LEDs, alarm, and more!
