15Pcs Guitar AMP Amplifier on Fit Knobs Black with Gold Aluminum Cap Top Fits 6Mm Diameter Pots Amplifiers

: knobs is made of ABS; cap is made of Aluminum Fits Amplifiers with 6mm Shaft Pots, these knobs DO not fit 'D' shaft Pots Height: about 16mm; Outer diameter at the : about 20mm on fit, no insert or set screw, Aluminum knobs are for equipment or potentiometers, used to replace the dirty, shabby Due to the wide of amplifiers and parts in the market, be to verify the diameter of the pots on your AMP you change the knobs for your amplifier