Educational Science Toy: Inspire young minds with this DIY hand-cranked generator kit, designed to introduce children to the basics of science and technology through hands-on experimentation Quality Material: Crafted from quality pp, this science kit is both lightweight and sturdy, ensuring secure and long term use for curious kids eager to explore scientific concepts Compact Size: With dimensions of 10.3cm in length and 9cm in height, this compact generator is perfectly sized for small hands, making it easy for children to assemble and operate Complete Set Included: The package comes as a complete set, providing everything needed to build the Hand Power Generator Model, allowing kids to start their scientific journey right out of the box Ideal Gift for Young Inventors: Ideal for birthdays or educational gifts, this science kit encourages creativity and problem-solving skills while offering endless fun as children discover how electricity is generated through manual effort Specification: Material: PP Size Chart: Length: 10.3cm/4.06inch Height: 9cm/3.54inch Package Includes: 1Hand Generator Model Note: 1.This is not infant toy , please take away from children to avoid eating.2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.