Pro grade bakelite Fender style skirted amp knob.  Sold individually. SPECIFICATIONSOverall Height: 5/8"Base Diameter: 1 3/16"Ideal Shaft Fit: 1/4" Solid Shaft (6.35mm)Fit Type: Set Screw Tech's notes: "Knobs sized for solid shaft pots will fit all pots, but may be ... See More