They are set of leather faced drums which plays an important role in the piphat Mon ensemble.
They are played to teasingly interrupt the rhythms with the Taphon mon adding a joyful mood to the music.
The poeng mang khok is set of 7 poeng mang drums of graded sizes which are tuned to the desired pitches and tones by stretching the leather faces and applying a mixture of kneaded cooked rice and ash to the center of one face.
The tuned drums are tied together and hung in order of pitches on a semi- circular wooden framework called khok poeng (about 60 centimeters high).
If using the set, the musician sits inside the khok poeng and uses his hands to beat the drums.