This is a perfect power source for stepper motors.
This is an Enclosed 4-wheel drive remote control robot kit. It uses four powerful wheelchair motors and the inside robot cavity has plenty of room for electronics.
Ready to ship SST2 tracked robotic platform. Features IG32 53 RPM gear motors and FLYSKY remote control. Charger for robot included. Handles up to 5lbs of additional payload and travels 40 ft/min.