arrived on time and looks good quality. no chips or scratches on the black finish and fits as expected. I used them on a 1x15 bass box I built. To keep these corners flush, you'll need to round off the edges of your cabinet by 1/2 inch (if you're building your own cabinet). Milling cutter and 1/2 inch round bit. If you are replacing corners on an existing cabinet, those corners will not sit properly if the edges are square or rounded with a smaller radius.