The Tonbak is a traditional Persian drum, often used in Iranian music. It is made from a wooden body and covered with animal skin, producing a deep, resonant sound. The drum is played with the hands, allowing for a variety of rhythms and tones, making it a versatile instrument in both solo and ensemble performances. Typically, the Tonbak is associated with classical Persian music but has also found its place in contemporary genres. Musicians often use it to accompany other instruments, such as the Santur or Setar, enriching the overall sound of the performance.