If you have a home that is around 30 years old or more there is a chance your wall switches are intermediate in size.
CSG range of intermediate switch plates were design to retrofit into existing wall switch mounting points, so that when replacing your old wall switches there is no mismatch in alignment and size. They are made with two different screw spacings both 54mm and 78mm.
Once again virgin polycarbonate is the plastic material of choice along with brass terminal screws.
Available in both white and black with a 5 Year inhouse warranty