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Sntieecr 6 Set Mini DC Motor Kit Electric Circuit Motor Kits for Kids DIY Toys and STEM Science Experiments Features: The electric motor kit is the ideal fun educational gift for kids and teenage who like STEM and science projects, can well develop kids learning skills and hand-on ability Packaged with 6 motors, mini size but great power, suitable for remote control electric toys, such as fan, car, boat, plane, etc. You can use in your engineering class, science experiments, student lab projects, STEM experiments and more 6 Set electric motors, good enough for you to work with your friends, classmates and family together, you must have funny experience to DIY unique and special toys Specifications: Voltage: DC 3V Rated Speed: 15000 RPM Motor Body Length: 38mm/ 1.46" Motor Body Diameter: 27mm/ 1.06" Shaft Size: 10 x 2.0mm/ 0.39" x 0.08"(L x D) Mounting Hole Distance(center to center): 15mm/ 0.59" Mini Boat Rocker Switch: 3A/250V, 6A/125V, 2 Solder Lug SPST On/Off Suitable Age: 6 Years and up Package Includes: 6 x DC Motor (3V 15000 RPM) 6 x DC Motor Mounting Bracket Holder 6 x AA Battery Holder Case (2 x 1.5V) 66 x Plastic Gears 6 x Shaft Propeller with 4 Vanes (Different Colors) 6 x Shaft Propeller with 3 Vanes (Different Colors) 6 x Mini Boat Rocker Switch 6 x Electronic Wire (10cm, Black) 6 x Electronic Wire (10cm, Red) 1 x Heat Shrink Tube (40cm⌀3mm) 3 x Buzzer Sounders 5 x Bulbs 3 x Bulb Holders 5 x Crocodile Clip Leads Notice: 1. Suitable for 6+ years, children should use under the supervision of adults. 2. Please read the circuit pictures carefully, and use the correct circuit diagram to avoid short circuit, short circuit will produce high temperature and cause the battery holder case to melt and burned.