The Perng Mang Kok is a percussive instrument used to furnish the rhythms. It is a set of leather faced drums which plays an important role in the Pii Pat Mon ensemble. It is played to teasingly interrupt the rhythms with the Tapone Mon adding the joyful mood to the music.
         The Perng Mang Kok is a set of 7 Perng 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 Kok Perng (about 60 centimeters high). The lowest pitch drum is hung on the furthest left and the highest pitch drum is hung on the furthest right. The musician sits inside the Kok Perng and uses his hands to beat the drums. Sometimes elbows or head are used to present fantastic and joyful styles.