Reese Towpower couplers are made of the highest quality steel construction. Several features make them easy to use while providing security for your trailer. An adjustable lock nut enables you to secure proper ball tension. A trigger handle makes it easy to secure the coupler on the hitch ball. Dual-fit couplers come with spacers that fit 2 channel widths helping to ensure a proper fit. A tethered pin is included for added security.