Fit for K2 K3 K3A K4 K5 L1for for for M210,M210S M210B M213,M210 Pro. Assist the robot to walk. C:1 Right Wheel+1 Left Wheel. A:1 Right Wheel. B:1 Left Wheel. Note:The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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