The Persian ney, also known as the nay or Nai, is a traditional flute-like wind instrument that has been played in Persian and Middle Eastern music for centuries. It is one of the oldest musical instruments still in use today. The ney is typically made of hollow cane or reed and has several finger holes and a mouthpiece. The ney is usually made from a type of cane called Arundo donax or a similar reed. It consists of a long, hollow tube with a mouthpiece at one end and finger holes along the length of the instrument. The length of the ney varies, but it is typically around 45 centimeters (18 inches) long.