The mixture of CuNiFe and cobalt chrome pole pieces was developed for Fender by tone guru Tim Shaw and provides this Fender Jazzmaster single coil pickup set for balanced tone dynamics with a certain warmth. A Cobalt-Chrome Bridge Pickup and a CuNiFe-Neck Pickup are located under the plastic caps in Vintage White and can be installed in Fender Jazzmaster electric guitars in true style in Offset-Design .