This duduk is made of acacia wood.
Cork is made of olive wood.
Video with this duduk you can see at: https://www.youtube.com/watch?v=5bzCb4qF15o
Notice: When ordering such long instruments, especialy D and C duduks, which are longer then 50 cm, it is important for us to know which hand you hold lower on the instrument, and which hand you hold up on the instrument closer to cork and your lips. This is important since the holes for lower right hand are drilled somewhat to the right, whereas for the left lower hand they are drilled more to the left, so that the playing is more comfortable.