This is a 70mm Omni directional robot wheel,it's useful as they roll freely, The 70mm plastic omni wheel is a robust,durable and double row wheel that provides easy 360°movement prope with rotational and sideways manoeuvrability. It comes with 3 different styles of hubs for the Arduino motors. If you use this omni wheel on your robot, it can be able to forward/backwards and rotation without changing its orientation.
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