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Amazon.com: 6 Set DC Motors Kit, Mini Electric Hobby Motor 3V -12V 25000 RPM Strong Magnetic with Shaft Propeller, 2 x AA Battery Holder,9V Battery Clip Connector,Plastic Wheels for DIY Science Projects :
Amazon.com : ZWJABYY Electric Bicycle Motor Kit,20/24/26/27.5/28/29/700C Inch Rear Wheel E-Bike Conversion Kit,36V/48V Hub Motor for Bicycle Powerful Motor,28in-36V/350W : Patio, Lawn & Garden
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Amazon.com: 6 Set DC Motors Kit, Mini Electric Hobby Motor 3V -12V 25000 RPM Strong Magnetic with 86Pcs Plastic Gears, 9V Battery Clip Connector,Boat Rocker Switch,Shaft Propeller for DIY Science Projects :
Amazon.com : ZWJABYY Electric Bicycle Motor Kit,20/24/26/27.5/28/29/700C Inch Rear Wheel E-Bike Conversion Kit,36V/48V Hub Motor for Bicycle Powerful Motor,28in-36V/350W : Patio, Lawn & Garden
Amazon.com: 6 Set DC Motors Kit, Mini Electric Hobby Motor 3V -12V 25000 RPM Strong Magnetic with Shaft Propeller, 2 x AA Battery Holder,9V Battery Clip Connector,Plastic Wheels for DIY Science Projects :
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Amazon.com: 6 Set DC Motors Kit, Mini Electric Hobby Motor 3V -12V 25000 RPM Strong Magnetic with Shaft Propeller, 2 x AA Battery Holder,9V Battery Clip Connector,Plastic Wheels for DIY Science Projects :
