●Ideal for Gibson guitars like Lespole, SG, ES-335 and more. If your guitar is epiphon style, use a 24 spline potentiometer with imperial inch size. It works as well ●Fits common 1/4" split shaft imperial size potentiometers, Fits most American guitars and fine knurling 24 spline shafts USA CTS / Fenders / Bones / Dimagio Standard Pot ●Your potentiometer will import coarse knurling 18 spline shaft or metric size, dont buy ●Acrylic ●Set of 4 (2 Volume, 2 Tone), Number 0-10