Dimmer Knob For Push-On D-Shaped Shaft, Light AlmondProduct Details:Body Color: Light AlmondMaterial: PlasticShaft Configuration: D Shaft, No Insert or Set Screw, Not SplinedView the Rear Image to see if the Knob is Compatible With the Stem on Your ControlKnob Base Diameter: 1.45″ Tapers To 1.4″ on TopHeight: 0.6″Shaft Size: D Shape 0.25″ x 0.17″ Flat SizeShaft Depth: 0.5″Markings on Knob Face: OFF / HI / MED / LO / OFFUNKRP10725