Mount onto trailers with an A-shaped tongue. Stronger than straight-tongue couplers and are especially common on RV trailers. Features a Posi-Lock latch to be easy to operate and quick to adjust, using a simple bolt within the latch mechanism. Steel construction with a durable gloss black finish to protect from corrosion, wear and tear. Spring and nut Posi-Lock mechanism allows for easy adjustment. Features holes to accept a safety pin or coupler lock. Constructed from die-cut, punched out steel. Protected by a durable gloss black powder coat finish. Mfr. three-year limited warranty Fits a 2"" diameter trailer ball Fits A-frame trailer tongues & 2"" trailer balls Passes SAE-684 performance testing as a class 3 coupler | Curt Class 3 5000 lb. A-Frame Coupler in Black