Build your own working motor, then build a generator to power it. Safe, solder less, exciting, educational and fun.; From the Manufacturer; Build your own working motor, then build a generator to power it. This is two building kits in one. Build your own electric powered MOTOR KIT. It's easy, it's fun, it's safe. Control motor's forward/reverse rotation with power. Easy-to-read, illustrated operating manual. Color mixing with rotating color disc included. Safe, solder less, exciting, educational and fun. Then Build your own operating GENERATOR KIT. It's easy, it's fun, it's safe.