The Ubanu'hi (infinity symbol) is a kind of guilloche or interlaced strapwork motif that can be angular or rounded. It was used by Edo artists in the decoration of many Emwin Arhe (royal treasures) and is ubiquitous in Benin royal arts. Ubanu'hi is a shortened form of “uba no Ọba ya de agbon ke ehimwin yi”, which means “the rope with which the Ọba ties the heaven and earth together” (pers. comm. Chief John Igbineweka Inneh n’Igbesawman, 2022). Similarly, Paula Ben-Amos Girshick (in Plankensteiner 2007, pp. 339, 341) described this as “Ọba n’iri agbon”, or the “rope of the world” pattern.

According to Ọbabanmu Ineh (in Blackmun 1984, p. 51), the use of this motif indicates that objects were carved by members of the Igbesanmwan. However, the motif is found on all types of Emwin Arhe (royal treasures), not only those made of ivory or wood. On the flanges of the Ama (relief plaques) alone, Kathryn Gunsch (2018, pp. 75–77) identified three different versions of the Ubanu'hi and, through her analysis of over 850 plaques, found that these different Ubanu'hi forms align with other characteristics, such as dimensions, the prevalence of ornamental motifs, and stylistic qualities. Together, these provide evidence, she argues, of different production groups among the plaque makers .

Kate Ezra (1992, pp. 209, 264) went on to argue that the use of these motifs indicates that certain objects were used in a “royal context” and were associated with “royal patronage”.

Ẹbẹn are a type of ceremonial sword of significant importance in the Benin Kingdom. During ceremonies, titled chiefs would hold them or toss them during dances, thereby paying homage to the Ọba at these public events, particularly when a chief receives a certain status. It is forbidden for Ẹbẹn to touch the ground, so the chief must take extra precautions to avoid dropping the Ẹbẹn during the dance. Therefore, the Okae-Odionmwan (head of executioners) dances with the Umozo (warfare or executioner’s sword) behind the dancing chief.

There are two central ceremonial swords used in the royal court of the Benin Kingdom, one of which is the Ẹbẹn, along with the Ada (ceremonial swords). They are distinguished by their blades: the Ẹbẹn blade reflects the shape of a leaf or an oar. Sometimes, it is decorated with openwork designs and/or brass inlays, most commonly shaped as small Ẹbẹn and Ẹkpẹn (leopards). The handle of the Ẹbẹn also has an unusual ring-shaped form, which further differentiates it from the Ada.

Asoro (spears) were used as weapons in battle and for hunting ( ; Ọbazee 2025, p. 37). According to , there were two types: long and short. Figures holding Asoro are often depicted on Ama-Ẹrọnmwọn (bronze relief plaques), sometimes in battle scenes and at ceremonies and festivals.

The Ada is a symbol of authority usually borne in the presence of the Ọba by a designated holder, the Omada, which translates as ‘Ada bearer’. The Ọba has almost exclusive rights to the use of the Ada, except when he permits titled chiefs, such as the Oliha, to possess one. During the Ogiso period, predating the current Ọba dynasty, the Ada is said to have been a symbol of ancestral power, with the ability to control the future (Ben-Amos 1995, p. 25). The Ada is ranked higher than the Ẹbẹn, another symbolically important ceremonial sword.

Anwa and Akpoka (tongs) were used by members of the Igun-Ematon and Igun-Eronmwon (Dark, 1973 ,p.48, 55[61]). Today they are still used by members of the Igun-Ematon to handle hot objects, such as crucibles, during the casting process.

Miniaturised versions of tongs were made by the Igun-Ematon for use as charms on shrines to Ogun (Dark, 1973, p.55[61]). Tongs thus have both practical and ritual uses in Benin Kingdom.

The Umọmọ is an L-shaped hammer made of iron that holds profound importance, symbolising power, transformation, and spiritual efficacy. The hammer is fundamentally associated with Ogun, the god of iron, embodying “the force inherent in metal, [with] a mystical power with the potential to create or destroy” ( ). This dual aspect of the hammer—its capacity for both shaping and destruction—mirrors the formidable power of the Ọba. The L-shaped hammer is often associated specifically with Ọba Eresonyẹn, as it most commonly appears within the visual language of Emwin Arhe (royal treasures) that he commissioned, for example, held by Ewua figures and on one ornate cast Ẹrhẹ, thought to have been Ọba Eresonyẹn’s throne (id. no. 209779) ( ).

The hammer is notably held by figures identified as Ewua palace officials or Ohensa priests, who also wear a cross pendant on their chests. The consistent portrayal of these figures holding the Umọmọ underscores its connection to the origins of the Benin dynasty and the spiritual authority of the Ọba. Ọba Esigie, the powerful 16th-century “warrior king”, is credited with encouraging ironworking, further solidifying the hammer’s link to royal martial strength and divine kingship.

Appearing on Aken'ni Elao (carved ivory tusks), Ama-Ẹrọnmwọn (bronze relief plaques), and even as a charm, the hammer symbolises the Ọba’s ability to “mold and transform” events, to overcome challenges, and to provide spiritual protection ( ). Its presence thus reinforces the complex interplay of hierarchy, spiritual authority, and military might within the Benin Kingdom, consistent with other potent symbols such as the Akọn Ẹkpẹn (leopard’s tooth neck ornament). The Umọmọ often appears on Emwin Arhe (royal treasures) believed to have been commissioned during the reign of Ọba Eresonyẹn ( ; ).

Other terms for hammer in Edo are Avan or Avalaka ( ), which are used interchangeably with Umọmọ by members of the Igun-Ẹrọnmwọn.