Master Lock 2-5/16" Hitch Ball & Clamp Trailer Coupler Lock 377DAT 20-0315

It fits 1-7/8 inch, 2 inch and 2-5/16 inch trailer coupler. Protect unattended trailers with this coupler lock. This product has a nickel-plated, zinc die-cast body with a front access key-way for ease of accessibility. Advance locking mechanism resists picking and prying. Adjusts to fit many makes and models.