Trimax THP3XL Hockey Puck Keyed Alike Internal Shackle Trailer Door Lock， (Pack of 3)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Universal fit with enlarged lock opening</li><li>3/8 inch diameter internal shackle</li><li>Weather resistant with no springs to rust or jam</li><li>One solid piece of steel</li><li>All 3 keyed alike for added convenience</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41lnlgakgZL.jpg" noproxy>