Cuica LP 8" en Cuivre8"; Ribbed brass shell construction; Calf head with pre installed stick; 8 self aligning drum key tuning lugs; Nylon strap included The Cuica is a Brazilian friction drum that features a stick that is fastened inside the drum in the center of the drumhead. Changing the pressure on this head produces different pitches and timbres. The 10 1 2 x 8 brass shell is outfitted with a goatskin heads, eight self aligning drum key tuning lugs and a strap loop