Reese Towpower 7042100 Adjustable Coupler Latch Lock<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>6 locking positions</li><li>Adjusts from 5/8 inch to 3 inches</li><li>3/16 inch diameter pin fits most couplers</li><li>Flat key design</li><li>Nickel plated steel shank and brushed aluminum body</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41bqX5dfcvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412APx3oIFL.jpg" noproxy>