First, they arrived quickly, well packaged and look very valuable. As I will explain I cannot comment on durability as they do not match my vehicle. I swapped out old, worn out factory nuts on an 8th generation Civic EX for factory alloys kept at the family stable. . I needed the Bulge M12-1.5 glans caps, but didn't realize that the bulge (in the name) isn't the same as the tapered seat. These are the tapered seats they say in their description, so the fault is mine. So I won't be able to use them and still haven't found a good kit to replace the ones on the car. Suggestions are welcome!