Mine seem brittle, exposed edges literally crumbling off..... most likely oxidation of the plastic if that is possible because the part of it that is buried in the seat is not brittle. Poor grade of plastic they used there because I'd think other parts like the cowl panel or rear view mirror would be more constantly exposed to the sun and they are fine. The handle itself (both) seem fine as well, just that cheap trim piece. I wonder if the $140x2 replacements are upgrades, or the same exact thing.......Why does it break? Is it when the seats are pushed back too far? Or simply exposure to sunlight and degradation?