2 Dome Guitar Knobs For Telecaster Tele or Jazz Bass JB -BLACK (C26) Brand new straight from the manufacturer and have never been installed. A set of 2. These knobs will Fit 6mm Pot Shaft.(imported guitar mostly, may not fit for the 1/4" shaft) Excellent quality, Heavy duty for a lifetime of use. Great for upgrade or replacement part. These are push on knobs that fit most split pot shafts, No screw require.