Most of you (l guess) will look at these and be reminded of what has probably become the second choice of bass after the iconic P and J style basses we all know and love, but what some of you may not know is that this pickup was in fact another design from the very innovative and creative mind of Leo Fender. Now Leo was a great fan of the "ceramic magnet". After years and years of working with Alnico magnets Leo discovered the excellent propoerties of what some perceieve as a cheap alternative to Aluminum, Cobalt and Nickel (Alnico). How do I know this ? quite simply, he told me!! Expanding on his technology sharing personality has allowd me design and build very economical great sounding pickups for both guitar and bass, however I have to say that the bass side really lends itself to the "WONDERS OF CERAMIC MAGNETS.Don't consider these as just inexpensive pickups, no they don't cost extortionate amounts of dollars but they sound just as expensive.