The etrailer Trailer Coupler Lock - Flat Lip 1-7/8" and 2" Ball Couplers - Aluminum - Yellow # e98897 and the etrailer Trailer Coupler Lock for Flat Lip 1-7/8" and 2" Ball Couplers - Aluminum - Silver # e98893 is the exact same part, the only difference is what color they are powder coated. view full answer...