RoadPro RPKPSL3 Standard Duty King Pin Lock with 2 Keys<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Prevents theft of trailers by prohibiting fifth wheel from engaging king pin</li><li>3.25 inch diameter x 3 inch height and 1/8 inch thick</li><li>Plastic florescent warning tag on plastic 12 inch chain</li><li>Slide bolt lock cylinder with 2 keys</li><li>Bolt designed for sheer strength， carbon steel pipe construction with zinc coating</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ikbLAl6SL.jpg" noproxy>