The STEMFIE Rubber-band-driven Car is a fun build and an excellent demonstration of energy retention and controlled release. Inspired by the classic mousetrap car science class experiment, this project helps children understand fundamental physics concepts while having a blast!
Assembly Tools
You will need the STEMFIE spanner and the STEMFIE driver to assemble this project.
Download the complete set of files here 
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This toy is unsuitable for children under three years due to choking hazards! 
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