These K6 Retro Knobs Fit on Dimmers of any plate finish. They are made by Varilight. These knobs will transform your dimmer into a retro looking piece of beauty. So if you are wanting that unique old school look, then choose this K6 Retro Knob. Also take a look at Varilight's Retro K7 knob, which is a slimmer but taller version.