DIY DC Motor Kit 6 Set Project Kit

Perfect for science experiments and projects with electricity and mini fan electric toys and science experiments etc. Will work with many power sources batteries and solar cells. Great fun Motor perfect for mini fan electric toys and science experiments etc. Will work with many power sources batteries and solar cells work perfectly. Manufactured by Sruim. Package including:6pcs DC motor 6pcs battery holder 6pcs rocker switch 6pcs motor mounting Bracket 12pcs 9.8" Electronic wire 82pcs plastic gears 4 pcs 4 vanes propeller 2pcs 3 vanes propeller and 40cm1 Heat shrink tube Pay attention: Please read the instructions or pictures carefully use the correct circuit diagram to avoid short circuit short circuit will produce high temperature and cause the battery Holder box to melt.