Basic Robot KitThis kit comes with 2 geared motors, 2 brass hubs, 2 wheels, 1 omni wheels, 1 battery holders, speed board, several screws and spacers. Both motors will work on voltage from 3V 6V with a maximum stall current of about 1A depending on voltage and internal resistance of the motor driver circuit. The wheel is a standard RC car wheel with a good quality rubber tires. Great Educational Toy have fun and learn!! This kit comes with 2 geared motors, 2 brass