This is a prewired harness for P-Bass® (MFG# PB-PREMIER). Soldered connections to the input jack are insulated with heat-shrink to ensure durability and long life. If you are installing this on an import guitar with metric sized pots, you may need to ream your pickguard holes to accept the slightly larger US-Spec pots and buy US-Spec knobs. Included  (2) Emerson PREMIER PRO 250k Solid Shaft (1) Switchcraft 1/4" Mono Input Jack (1) 0.047uf Emerson Paper in Oil Capacitor (1) Volume Mod Wiring Diagram **Will NOT fit '51 Style P-Basses as these guitars are spaced differently than the model Emerson produces. Authorized Allparts Music dealer. Brand new, factory-fresh Emerson Custom stock. Ships fast with tracking — free shipping on orders over $25 to the lower 48.