White Selector Knob Specifications this Selector Knob Is White And Just Over An Inch In Diameter. Made Entirely Of Plastic, It Has A Gray Indicator Dot And Is Intended For Use With Both Washing Machines And Some Clothes Dryers. This Part Works With The Following Products: This Part Works With The Following Products: Washer, Dryer. This Part Works With The Following Products: This Part Works With The Following Products: Norge, Admiral, Magic Chef, Hoover. Part, Wp21001239 Replaces These: Part, Wp21001239 Replaces These: 21001239,35-2673,35-2940,35-3961Cross Parts: 21001239, 35-2940, 35-3961, 35-2673