Reese Towpower 7066900 Professional Universal Coupler Lock, Black

Fits 1-7/8 inch, 2 inch & 2-5/16 inch couplers.Fit Type: Universal Fit Fits coupler styles such as standard lip, straight lip, rolled lip, bulldog and surge brake Deters tow away theft Square key design resists picking Cast steel construction with a premium corrosion resistant finish