Dogon masquerades. The tiu can be four to five meters high, representing both a tree and a clan house. It rests on the dancer's head and is tied to the waist with strips of cloth through a mesh of cords at the back. To maneuver, the dancer bites on a grip inside the headpiece. It takes good teeth as well as a strong neck to dance this mask, as the huge contraption has to move vigorously.