Make your tow vehicle and trailer more secure with the CURT .625 in Hitch and .875 in Coupler Lock Set. This combo pack includes a .625 inch hitch lock and a .875 inch coupler lock coated with a chrome finish for durability. The hitch lock features a barbell design and comes with a .625 inch pin diameter to fit a 2 inch receiver tube opening, and the coupler lock features a barbell design and offers a pin span of .875 inches.