This 5 foot 3 inch long Concert Level Instrument has had one owner who took great care of it. It has a good sustain, resonance and volume and stays in tune. There are no cracks. It comes with a wooden Deluxe Hardshell Case It has 21 cloth strings, not found on entry level metal strung inexpensive versions of this old style instrument. It dates back to 500 A.D. as a 5 string instrument known as a Chin (Qin 琴), later becoming the Gu Zheng 古箏.