Musiclily B500k Push Pull Split Knurled Short Shaft Metric 15mm Linear Taper Guitar Volume Switch Control Pot Potentiometer for Guitar Bass Parts, Chrome (Pack of 2) Fits Stratocaster and Les Paul 6MM knobs,Fits 6.0mm diamerter metric knobs as well.Ideal for electric guitar or bass building. Full Resistance:500k ohm;Linear Taper Shaft Length: 15mm Shaft Diameter: 6mm; Full Size; Whole Length: 43mm; Metric Size is popular in guitars bass made outside the USA/Mexico. Package Include: 2 x guitar potentiometers