OEM type external screw mount rear view mirror. Fits LH or RH side. Screw spacing is 3 3/4" center to center. Chrome base is 4 5/8" long. Comes with rubber base seal which is 4 13/16" long. Mirror glass has slight bluish tint. This mirror offers a greater variety of placement location as it doesn't need to allow room for your hand and/or wrench inside the door to attach it.