252mm traction wheel: The 252mm traction wheel is specifically designed for the 420, 320, 430X, for 435X, 440, 450X lawn mower robot. Enhanced performance: With the combination of the traction wheel, anti-skid spikes, and power-assisted features, this wheel significantly improves the overall performance and maneuverability of the lawn mower robot, allowing for efficient and effective mowing operations.
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