Assembled handcranked electric generator designed for demonstrations, emergency backup, and outdoor use. The detachable hand crank converts human motion into electrical output, making it a simple, reliable source of power when mains electricity is not available. Built from ABS engineering plastic, this compact unit is lightweight and durable for regular handling and field use. Key benefits Manual power on demand: generates electricity by hand crank so you have power without batteries or mains supply. Durable construction: ABS engineering plastic resists wear and stands up to handling in classroom and outdoor settings. Portable and easy to use: compact size and low weight make it simple to carry and operate wherever you need it. Educational tool: ideal for school demonstrations to show energy conversion, basic motor and generator principles, and handson experiments. Features and specifications Material: ABS plastic Color: as pictured Size: approximately 80 x 75 mm (3.15 x 2.95 in) Package weight: approx 64 g Includes: 1 Pc Generator Assembled, with detachable hand crank for straightforward operation Practical applications Classroom demonstrations: show how mechanical motion becomes electrical energy during physics or STEM lessons. Emergency preparedness: produce manual power for small devices and lighting during power outages. Outdoor activities: use while camping or hiking to power small electronics or charge simple devices in remote situations. Usage notes Simple to operate by turning the hand crank; suitable for demonstration use and small power needs. Size and weight make it easy to store and transport. Please allow 1 to 2 cm variation due to manual measurement. Actual item color may vary slightly from the photos due to monitor differences.