Sound of Mountain 21 String Black Sandalwood Guzheng Instrument Chinese Zither Koto Gu Zheng Size: 64'' (length) * 12.6'' (width), standard size. String number: 21. String material: steel string with wool nylon cover. Veneer material: black sandalwood. Sound board material: paulownia wood. Structure material: pine wood and solid wood. Original Accessories: maple wood string bridges with ox horn sink, standard guzheng string (fixed), tuning hammer, A style guzheng stand. Additional Gifts: professional guzheng nail 2 sets ( 8 pcs, 4 for each hands), guzheng bag, spare strings for 1-5, electric guzheng tunner, anti-allergy rubberized fabric, cleaning brush, common music stand, dust proof cover. This guzheng adopts black sandalwood, paulownia wood, pine wood and solid wood as the main material. All the material used were of good quality and were soaked, dislagged and dried before using, which directly contribute to the smooth touch feeling and good sound of the guzheng. The carved poems or pictures were handcrafted by professional cutler with precise artmanship, making the guzheng exquisite and elegant, as well as giving the guzheng culture connotation. The string were covered by nylon