The official Fender Original Jazz Bass Pickups Set is a vintage accurate reproduction of the early '60s original Jazz Bass pickups, delivering all the punch and midrange growl that made the instrument so popular. Featuring formvar coated magnet wire for a bright and glassy tone, alnico two magnets for complex harmonic with a warm attack and a less aggressive midrange, with flush mounted pole pieces for an even string response and period correct cloth wire and fibre bobbins.