This is a 4 wheel drive,Mecanum wheel mobile platform vehicle is stable and can be made to move in any direction and turn by varying the direction and speed of each wheel. Moving all four wheels in the same direction causes forward/backward movement, running left/right sides in opposite directions causes rotation, and running front and rear in opposite directions causes sideways movement.Its special way its rear wheels mounted ensure roadholding of each wheel. 

Features:

*4 wheels drive

*Mecanum wheels

*Aluminum alloy body

*Suspension ensure 4 wheel adhere to ground

*Mounts reserve for Ultrasonic and Infrared sensor(Not includes Infrared sensor)

*DC motors with encoders

*Includes Microcontroller and IO expansion board

*Capable of moving forward, backward, sideway, rotation.

Parts included:

100mm Aluminum Mecanum wheel X 4

Ultrasonic sensor X 4

Arduino 328 Controller X 1

Arduino IO expansion X1

12V DC Coreless Motor with Encoder X 4

12V Ni-Mh Battery X 1

12V charger X 1

Specifications:

Dimensions: 400mm X 360mm X 100mm

Body material: Aluminum alloy

Diameter of Mecanum wheels:100mm

Motor type； 12V DC coreless Motor

Encoder Resolution : 12CPR

Net weight : 4.2kg