Bulldog 1289050300 Gooseneck Coupler - Inner Tube Only<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>4 inch diameter inner tube only - short configuration</li><li>Resists theft with integrated feature to allow pad-locking the coupler to the ball (lock not included)</li><li>Provides continuous tight ball fit with ever-increasing cam tightening locking mechanism - 2-5/16 inch ball socket. 30，000 lb gross trailer weight rating.</li><li>Lengthens life of locking mechanism with oil-impregnated bushing and grease fittings on critical moving parts</li><li>Read product description below for more detailed information.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31d69zPAKoL.jpg" noproxy>