A wide bowl with strongly upwardly rounded narrow sides, the ends of which are pulled down under the boat-like curved bowl base. Ten strings (partly made of plant fibre). On each narrow side [are] ten diagonally drilled string guide perforations. One end of the string [is] looped into a knot below an outer perforation, the other is knotted to the neighbouring section of the string. There is a pair of perforations on each of the long sides. A longitudinally carved stem extension with an unoccupied hole. Along each of the rows of perforations [is] a group of notched lines. from Ulrich Wegner: Afrikanische Saiteninstrumente, Staatliche Museen Berlin - SPK, 1984 (Appendix Object Catalogue)