Santoor

n. Persian dulcimer with two bridges and many strings played with a pair of light wooden sticks

The santur is a Persian hammered dulcimer similar to the Indian santoor. The santoor is a trapezoid-shaped hammered dulcimer often made of walnut, with seventy strings. The special-shaped mallets (mezrab) are lightweight and are held between the index and middle fingers. A typical santoor has two sets of bridges, providing a range of three octaves.
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simple, stringed instrument, belonging to the category of zithers; struck with two hammers; see Hammered Dulcimer.