My custom made period correct thickness nickel covers allow the transparenc and high end of your favorite humbucker to shine through. Most of the pickup covers on the market are simply made too thick and kill the high end of a humbucker. Mine are made to my exacting specs that made the late 50's PAF humbucker sound so clear and transparent. These are sized to fit in the import size routed pickup cavity ala Epiphone, PRS, etc. This is one set.