LOOK Collection Grade 21 Strings Guzheng Aged Nanmu Chinese Zither Instrument W/ Full Accessories For Professional PerformanceFeatures: This guzheng adopts nanmu, paulownia wood, pine wood and solid wood as the main material. All the material used were of good quality and were soaked, slag removed and dried before using, which directly contribute to the smooth touch feeling and good sound of the guzheng. The carved pictures were handcrafted by professional cutlers with precise workmanship, making the guzheng exquisite and elegant as well as giving the guzheng culture