Upgrade your tone with the Emerson Custom Precision Bass Prewired Kit. This kit has been conveniently assembled with high quality parts with the correct spacing for easy drop-in installation. The kit consists of 2 Emerson Premier Pro 250K Solid Shafts, 1 Switchcraft 1/4-inch Mono Input Jack, 1 0.047uf Emerson Paper in Oil Capacitor, 1 volume mod, and a wiring diagram.