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Genecon Hand Crank Generator, Self-Powered Manual Electricity, 2.5V-12V, 0.2 Amp
This ingenious device generates student interest as well as 5 volts of direct current – producing electrical energy through hands-on student effort. Made from a sturdy, see-through ABS resin with nylon-plastic gears and handle, the Genecon is designed to shrug off use and abuse.