MFA Geared Motor Kit 917D14Product overview Please note product now comes boxed 45 piece kit with pre assembled motor gearbox Great for use in models, robots, experiments and education Operating voltage between 1. 5V and 3V Six different ratios to choose from Speeds of up to 11,500 rotations per minute Torque of up to 10. 92gf. cm Comes with a variety of gears, shafts, robotic wheels, fixings and a miniature screwdriver as well as much more What can I build with this kit? This