They have "rounded" inside corners for rounded corners. If your post grommets are a snug fit, they will not fit snugly and will not snap fully into place. I used a file to make the 90 degree angles and then they fit my post bushings. So they will work, albeit with a slight modification. The overall quality of the parts is very good and they look good. They're a little bigger than my original ones, but barely noticeable. Fair price and I'm satisfied.
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