The Sonic Bike Propeller is a great project for kids old enough to ride a trike or a bike. This electric fan-powered project is designed to look like a vintage radial aircraft engine and cowl, with a rotating propeller. This project will add exciting imaginary fun for young aspiring aviators. The built-in clamp will mount to handlebars from 3/4" to 1" in diameter, and the foam propeller blades keep little fingers safe.
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