Description: Mahogany 40'' Acoustic Guitar Neck Luthier DIY Replacement Parts. Made of high grade mahogany, smooth and exquisite craftsmanship. Perfect guitar neck for DIY your own guitar. A great replacement for your old guitar neck. Size Chart: Bottom Width: Approx. 5.7cm/2.24inch Length: Approx. 54cm/21.26inch Hole Diameter: Approx. 8.2mm/0.32inch Package Includes: 1 Piece Guitar Neck