All Solid Mahogany, Concert Size, Aquila Strings The all solid mahogany concert ukulele has a traditional and vintage look to it. The edges are trimmed with a faux tortoise shell binding with a traditional mahogany neck with rosewood fingerboard. The KA-SMHC have a simple clean satin stain on its exterior and the instrument has superb projection. The instrument is tuned with Aquila Nylgut strings, has 20 silver nickel frets nad Chrome Die-Cast Tuners.