JR Products 01184 Large Coupler Lock Pin with Pin Saver<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>5/16-inch diameter with 2-1/2-inch usable length</li><li>Security chain fastens to your coupler for added security</li><li>Constructed of zinc plated steel</li><li>Snap lock bail is spring tensioned for a stronger hold</li><li>packaged</li><li>5/16-inch diameter with 2-1/2-inch usable length</li><li>Packaged</li></ul></div><img src="http://ecx.images-amazon.com/images/I/419t2nlM6HL.jpg" noproxy>