དམ་པའ་ཆས་པད་མ་དཀར་པ་ཞས་བྱ་བ་ཐག་པ་ཆན་པའ་མད notes.140

The White Lotus of the Good Dharma notes.140

140. A conical or bowl kettledrum, also called a nagada. The upper surface is beaten with sticks; often in pairs, one larger than the other.