● Includes 5 models with the theme of “gears”. ● Models use gears and/or rubber bands to move. ● New Propeller design. ● Realistic outer shell designs make the models come alive!
Build five fun gadgets and learn about gears and transmissions. ●Create a helicopter model with a rotor that spins using a rubber band-powered motor. ●Assemble a spinner toy that you wind up to launch a fast-spinning top. ●Make a centripetal force machine that flings its arms outward at high speeds. ●Build a hand mixer that demonstrates a gear train. ●Construct a cool aircraft launcher that flings a model vehicle across the room on a zipline. A 32-page manual guides your model building and experiments with step-by-step illustrated instructions.