Reese Towpower couplers are made of the highest quality steel construction and provide dependable security for your trailer. The easy to use coupler features an adjustable lock nut that enables you to achieve proper ball tension, while a trigger handle makes it easy to secure the coupler onto the hitch ball. Dual-fit coupler comes with spacers that fit two channel widths to ensure a proper fit. Fits 2-1/2" or 3" channel widths. A tethered pin is included for added security. Zinc finish resists corrosion to provide years of use. 3,500-lb. capacity.