7/8in. x 3/4in. Plain Dimmer Knob Unfinished Brass With Set Screw (Recessed Bottom Hides Dimmer Hardware)Works with 1/4in. Dimmer Shafts Round or Flat Sided
7/8in. x 3/4in. Diamond Knurled Dimmer Knob Unfinished Brass With Set Screw (Recessed Bottom Hides Dimmer Hardware) Works with 1/4in. Dimmer Shafts Round or Flat Sided