Item description stated the "Length:14.5cm(5.7inch)" or 145mm. The buckles received were 190mm in length. The 145mm length would have been correct for my vehicle, but I made the 190mm length work. The mounting hole diameter was 14mm and the mounting hole for my vehicle was 17.5mm. I made it work by drilling the hole larger. All though it was not a perfect replacement for my vehicle, it's better than the old non-working buckle I had.