Photo 1 of WUSHIXAN 4 Pin Trailer Tester 4 Way Flat Trailer Light Tester Connector Trailer Wiring Tester Straight Trailer Light Wire Circuit Tester

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Photo 1 of WUSHIXAN 4 Pin Trailer Tester 4 Way Flat Trailer Light Tester Connector Trailer Wiring Tester Straight Trailer Light Wire Circuit TesterPhoto 2 of WUSHIXAN 4 Pin Trailer Tester 4 Way Flat Trailer Light Tester Connector Trailer Wiring Tester Straight Trailer Light Wire Circuit Tester