The Mitchell MU100 Koa Concert Ukulele has top, back, and sides made of laminated Hawaiian koa wood. The MU100 is gorgeously appointed with abalone rosette and purfling. This instrument sounds as sweet as it looks.Body style: Concert Ukulele Top: Laminated koa Back: Laminated koa Sides: Laminated koa Fingerboard: Rosewood Bridge: Rosewood Inlay pattern: Mother-of-pearl mini-dots Rosette: Abalone Binding: White with abalone purfling No. of frets: 19, 14 open Scale length: 14-7/8" Width at upper bout: 5-9/16" Width at lower bout: 7-11/16" Maximum depth: 2-3/4" Finish: Natural gloss Tuners: Traditional button