Kidwind Gear Set With Spool, Used To Increase The Rpm Of Generators To Give High Power Output During Experiments, Each

Details:

IIncludes four gears with sizes 64, 32, 16 and 8 teethIncluded hex locks secures to 9/64 in. hex-driveshaft, also used to change gears8-tooth gear fits onto 2mm driveshafts on DC generatorsRecommended for College and High SchoolWarranty and Services5-year limited warranty