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Amazon.com: Sntieecr 6 Set 131 PCS DC Motors Kit, Mini Electric Motor 1.5-3V 15000RPM with 66 PCS Plastic Gears, Shaft Propeller, Bulbs, Buzzer Sounder, Science Experiment Set for Kid DIY STEM Engineering
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Amazon.com: Sntieecr 6 Set 131 PCS DC Motors Kit, Mini Electric Motor 1.5-3V 15000RPM with 66 PCS Plastic Gears, Shaft Propeller, Bulbs, Buzzer Sounder, Science Experiment Set for Kid DIY STEM Engineering
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Amazon.com: EUDAX Mini Generator Motors 3V-12V DC Motor Electric Motor for DIY Toys Wind Turbine Generator Hand Cranked Power Generator Model (Plastic Motor Holder) : Toys & Games
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Amazon.com: Sntieecr 6 Set 131 PCS DC Motors Kit, Mini Electric Motor 1.5-3V 15000RPM with 66 PCS Plastic Gears, Shaft Propeller, Bulbs, Buzzer Sounder, Science Experiment Set for Kid DIY STEM Engineering
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Amazon.com: Sntieecr 6 Set 131 PCS DC Motors Kit, Mini Electric Motor 1.5-3V 15000RPM with 66 PCS Plastic Gears, Shaft Propeller, Bulbs, Buzzer Sounder, Science Experiment Set for Kid DIY STEM Engineering
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