Dust cap for the front or rear axle. Fits over the axle hub flange and protects the axle nut from dirt and debris. This will not fit front axles with manual lockouts. These are chrome plated. Fits:
Product was as described. No instructions for install but easy to figure out. I put the closed end of the box up under the dash first and then worked it back into position. Mark and pre-drill a few of the holes and it'll be easier to secure in place. They answered my questions via chat very quickly and were good to work with. Will be buying from them again.