Built on a dreadnought platform, the Martin D15M guitar boasts 14 open frets for a unique design and great range of tone. The top, back, and sides are genuine solid mahogany, offering strong guitar tone, with crisp, clear subtleties in each note's definition. The solid mahogany neck further complements the crisp, defined acoustic sound of this dreadnought. The bridge and fingerboard are solid East Indian rosewood, adding smooth sustain to the mix. The 14 open frets, 1-11/16" nut width, 2-1/8" bridge string spacing, and 16" radius add comfort for your intricate fingerboard movements. Other appointments include a single-ring rosette, bone nut, solid/square taper headstock, solid East Indian rosewood headplate, diamonds and square fingerboard inlay, belly-style bridge, nickel open-geared tuning machines with butterbean knobs, and a solid black ebony bridge and end pins. Dressed in a soft satin finish and featuring a Delmar tortoise color pickguard..