Luba or Songye. Wood, fibre, pigments, feathers. Tervuren A mong the Songye, the bwadi bwa kifwebe society guides the ruling elite, helping them to maintain economic and political power. Bifwebe masks are believed to be beyond the realm of the universe.
Male masks are distinguishable from the female bifwebe by a long upright crest.
Female masks are associated with the moon and are worn for moon rituals as well as during funerals and initiation rites.