The Premier 150 & 150-1 Combination Couplings with 5/16" Ball is the perfect choice for light to medium duty towing applications. These couplings feature a compact low profile with a trigger latch system that rotates sideways out of the way in either direction. With a stout product in a modest size, these couplings are dependable, durable, and competent. The impressive superior quality of these couplings make them the perfect choice for utility type applications. FleetPride is your First Click in Heavy Duty®.