This package of two mirrors fit my 1999 Light-Duty Ford F-250 2WD perfectly. Mirrors can extend out or retract in on their two plastic arms to accommodate trailer size accordingly. Both upper and lower mirrors are adjustable on individual pivots. Whole assembly can manually tilt in towards the door window should need to reduce truck 'width' in a parking spot. Bolt holes and supplied gasket fit precisely into truck door. Small nuts were supplied so I re-used the original nuts with larger built-in washer to attach the new mirrors. Mirrors arrived in one box and were well packaged in individual soft bags to prevent scratches then held in place in the box with custom Styrofoam. Mirrors only install for 1 month so cannot speak to the longevity of the black plastic or mirror silvering. I'm must pleased that I can finally see clearly what is back there behind the cattle trailer.