Picture is an example yours will be similar.
Additional Information: This piece was worn as an arm ornament by women on the left forearm, sometimes on both arms. It is made of one continuous piece and does not open. When you wear it, it looks better with more than one, like stackable bangles. These bracelets were found in South Africa where they were worn by Zulu women. But arm ornaments like these can also be found in East Africa, especially among the Marakwet and Turkana from Kenya. Iron, brass, copper alloy and aluminium are the various row materials used to make these ornaments. Sometimes, amulets would be attached to these bracelets. In that case, they would be served as protective objects.
Hlengiwe Dube, ZULU BEADWORK.TALKING WITH BEADS, AfricaDirect, Inc., Denver, 2009, 112 p
Jean Morris (text by Eleanor Preston-White), SPEAKING WITH BEADS. ZULU ARTS FROM SOUTHERN AFRICA.
Gunter Best, Marakwet & Turkana. New Perspectives on the Material Culture of East African Societies. Museum fur Volkerkunde Frankfurt am Main 1993