Description Devantech SW01 - Servo & Wheel Set Features continuous rotation servos Includes two standard servos Comes with two durable wheels Economical drive system Ideal for robotics projects The Devantech SW01 - Servo & Wheel Set is an economical drive system featuring two standard servos modified for continuous rotation and two wheels. View more What's Included 2x Standard servo (factory modified for continuous rotation) 2x Wheel