The Martin 0 Soprano Uke is the smallest-sized ukulele that Martin makes, with a top, back and sides made of sinker mahogany salvaged from a river bottom in Belize. Sinker mahogany is denser and offers slightly more harmonic complexity than regular mahogany. The entire body is finished in high-quality satin lacquer. Additional appointments to the 0 Soprano Uke include a sinker mahogany neck, rosewood fingerboard and bridge, black TUSQ nut and black peg tuners. Comes with a softshell case.