Hornbostel - Sachs
Double-conical rattle drums
An individual drum with a tubular body that has a larger diameter at the middle than at the ends. The drum body is rectilinear, with an angular profile. Tightly stretched membranes enclose the body at either end. The membranes are indirectly struck by pendant or enclosed pellets, or similar objects, when the drum is shaken.
Individual double-conical rattle drums