Each RoboMaster S1 Mecanum Wheel Part 7 contains twelve rollers enabling the S1 to move backward, forward, sideways, and to rotate and translate. 

A two-shot injection molding process was adopted to give the Mecanum rollers advanced traction while retaining rigidity. Damping rings are embedded into the wheels to absorb impact and collisions during movement and to ensure stable video while protecting the structure of the RoboMaster.