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3Pcs Geekcreit 4WD Smart Robot Car Chassis Kits With Strong Magneto Speed Encoder For Arduino
Features: 1. The height between two chassis can be change by diffirent copper pillar 2. 20 line Speed Encoder, more accurate than 6 or 10 one Specification about Motor: Package included: 3 x 4WD Smart Robot Car Chassis Kits