Musiclily Guitar Full Size Pots A500K Split Knurled Long 18mm Shaft Audio Volume Taper Potentiometers for Eletric Guitar Bass Replacement (Pack of 20) Fits Stratocaster and Les Paul 6MM knobs,should also fits other 6mm knobs as well.Ideal for electric guitar or bass building. Full Resistance: 500k ohm;Audio Taper Shaft Length: 18mm; Shaft Diameter: 6mm Full size;Whole Length: 29Mm. Base Diameter: 23Mm. Package includes: 20 pcs A500K Potentiometers