Black Trailer Hitch Lock for 1 7/8 2 and 2 5/16 Inch Couplers with Keys
Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers. The Master Lock 379ATPY features a universal trailer coupler lock, designed to fit 1-7/8 in. (48 mm), 2 in.