Concert Ukulele with built in preamp. The Solid Spruce Top Mahogany line is comprised of a Solid Spruce top and Mahogany back and sides. The Spruce has a clean and bare look that pairs well with the elegant simplicity of the Mahogany. Scale Length: 14.875 inches, Overall Instrument Length: 24.125 inches, Body Length: 11.125 inches, Number of frets: 18, Width at upper bout: 6 inches, Width at lower bout: 8.25 inches, Width at waist: 4.875 inches, Body Depth: 2.75 inches, Fingerboard width at nut: 1.39 inches, Fingerboard width at neck/body joint: 1.73 inches. Gig bag is included. Preamp: Shadow NFX. Finish: Natural Gloss.