Standard Fender specification. Vintage-style spiral saddles. For use with Jazz Bass, Precision Bass, etc. Aged processing has been applied. What looks like rust is a special dye, so it is not actually rusted. The set screws for string height adjustment, which tend to seize, are also not corroded, only pseudo-rust is applied. The functionality is brand new. ※The photos are of a previously aged bridge and are reused, but this is a listing for a bridge with the same specifications.