7 Round Pin Connector Cleaners Product Type 7 Round Pin Connector Cleaners Connection Type 7-Way (Round) For Use With 7-Way Round Pin Trailer Connections Color Gold Silver Material Anodized Aluminum Overall Length 9 in Height 1/2 in Features Clean and Resize Male and Female 7-Way Round Pin Tractor Trailer Connectors Enhances Electrical Contact Points Extends Harness Life For Commercial Trick and Trailer Connectors Use As A Pin-Wear Gauge Includes (2) 7-Way Round Pin Cleaners