Straight Tongue Coupler, 2 5/16″ Ball, 12.5K 3″ Square Tongue, Cast, Painted Designed for utility, horse/livestock, cargo, and construction trailer applications, BULLDOG® Collar-Lok are the strongest in the industry. The BULLDOG® design features th eonly automatic and continuously tight ball fit in the industry. A variety of coupler styles, tongue mounts, and latches allow configurations to match virtually any trailer. Adjustable couplers assure level operation for trailers when pulled by a variety of different vehicles. Easiest to use. Strong in both static and dynamic loading conditions. Hinged ball socket for easy hook up. Clear, visual indication of proper closure.
