Set of 4 CTS 450G 500K Split Shaft Potentiometer Audio Taper 10% Tolerance Recessed bottom for easy turning. 10% tolerance ensures your guitar sounds like it is supposed to. Durable solid brass bushing and 24 fine spline brass shaft. Bushing is 3/8" long and has a 3/8" diameter. (Will not fit metric standard guitars) Includes mounting hardware.