Have fun with the Dagu Magician Chassis. It features two gear motors with 65mm wheels and a rear caster. What's more, the acrylic chassis plates have a wide variety of mounting holes for sensors, controllers, power, etc. Simply bolt the two pre-cut platforms together, attach the motors and caster and add your favorite robotics controller. In addition, this kit includes all of the parts needed to assemble the chassis as well as a 4xAA battery holder with barrel jack termination.