Seymour Duncan SJBJ-1b "JB Jr." model pickup. Bridge position. White. The JB Jr. delivers the character of the JB model humbucker in a single coil size. Its adjustable pole pieces emulate the magnetic field of a full size humbucker and allow for fine tuning of string balance. Hum-cancelling with plenty of power for hot leads-rated at 16.09k ohms. Four conductor cable for split/phase options. Includes wiring diagram and mounting hardware.