Bourns SQR-FS Pot 500k log
Bourns Guitar Potentiometer, square, 16mm, mono (with extra long thread). Solid full shaft.
Conductive Plastic Element, very low noise, long life (100.000 cycles)
These high quality audio potentiometers made by Bourns are suitable for use in both professional and consumer applications. The most popular applications are electric guitars, sound processing equipment, and sound system amplifiers.