The Krin, also called kolokolos or commonly “slit drum,” originates from the Forest Region of Guinea, West Africa. Typically carved from a khari, mango, or redwood log, it is semi-hollowed with either two or three “slits” that will produce different tones when played with sticks. The krin is sometimes thought of as the original “African telephone,” as it was used for communication between villages in the Forest Region.