The Cordoba 15 Series is a line of handmade ukuleles with mahogany tops, backs and sides. The fingerboard and body ivroid binding give these entry level ukuleles a classic appearance. Unlike similar instruments at this price point, the Cordoba 15 Series ukuleles all have an authentic abalone rosette and satin finish. The 15 Series (15SM Soprano and 15CM Concert) is a great all-rounder line of ukuleles, making them exceptional ukuleles for beginners and enthusiasts alike.