Director of the Dong Nai Museum Tran Quang Toai said that the instrument has five resonant stone slabs with the biggest slab being 75-cm long and 15-cm wide, and the smallest, 45-cm long and 10-cm wide.

Ethnomusicologists, however, are still unable to identify whether the instrument was made of local stone or not.

According to the provincial museum, the newly-discovered dan da is made from material and has the same shape as the one, found in Binh Da ward, Bien Hoa city, which is 3080 years old.