Hopkins 48655 4 Wire Flat Tester Keychain<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Quickly and easily see if your trailer wiring is properly installed on your vehicle</li><li>Tests left turn/brake， right turn/brake， and tail/marker lights</li><li>Red LED light glows if connection is correct</li><li>Reliable and durable</li><li>Quick and easy to install</li></ul></div><img src="http://ecx.images-amazon.com/images/I/3161rpr1VQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/413cRwoAo6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/418hML8wQmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Cd-WAcgrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31jS7tvTI0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31YQtLW4ZnL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31YQtLW4ZnL.jpg" noproxy>