This is an audio taper potentiometer, perfect for replacing or modernizing volume and sound control.Split shaft with coarse knurling fits most knobs.This potentiometer has a A500K Ohm large control pot, great potentiometer for a guitar Guitar Volume potentiometerSplit shaft with coarse knurling fits most knobsA500K Ohm big control potFoot diameter: Approx. 0.94 inch / 24mmShank length: Approx. 0.71 inch / 18mmSplit stem diameter: Approx. 0.23 inch / 6mmmaterial: metalColor: as shownPackage Included:4 x A500k guitar potentiometerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.