Upgrade Your Bass guitar with Pro-Level Performance! The WUQIMUSC replacement bass neck delivers classic J Bass tone and modern playability, crafted for musicians who demand precision. Whether you need a 30" short-scale for compact comfort or a 34" long-scale for classic punch, our necks are machined to exacting standards. Key Features: ✔ 3 Scale Lengths: 30" (comfort), 32" (balanced), 34" (traditional) ✔ Fret Options: 20 (vintage), 21 (standard), or 22 (extended range) frets ✔ Top Truss Rod Access: Adjust neck relief without removing strings ✔ Bolt-On Ready: 64-65mm heel, Fits most J style bass guitar bodies ✔ Tuning Stability: 18mm peg holes fit most locking tuners Technical Specifications: Nut Width: 38mm; Fretboard Radius: 9.5" (balanced playability); Heel Design: Rounded contour + flush fretboard transition; Weight: 2.2-2.8 lbs (varies by scale length);