The Adjustable Cast Couplers with 5 Position Channel from Buyers Products provides added flexibility in coupler height for leveling your trailer. Its spring-loaded auto-engage latch lets you quickly lock it to a hitch ball with just one hand. The latch can be pinned opened for ease of uncoupling. The 5 position channel allows height adjustability for leveling your trailer. Simply bolt the coupler into the channel bracket to fit your needs. Fasteners are included. Made of rugged cast steel, the coupler can handle loads of 10,000 lb (2 in. ball) or 15,000 lb (2-5/16 in. ball).