Ideal for Asia made electric guitar, like after 2000's Epiphone LP/SG/ES and almost all Ibanez/ESP/Cort guitars which made in Japan, Korea, China and Indonesia Metric size, coarse 18 splines, fit most Asia/Europe made 6mm(15/64 inch) split shaft potentiometers like Alpha, NOT fit USA/imperial size potentiometers like CTS/Fender/Dimarzio/Bourns pots, you can find our imperial inch size knobs for them Inner hole diameter: 6mm(15/64 inch), base outer diameter: 26mm(1-1/32 inch), height: 13mm(33/64 inch) Made of acrylic
