The art of decorating the Cor people's poles exists and develops closely with festivals and is passed down from generation to generation, expressing cultural identity and bearing the mark of the community. The Cor people's poles usually have three types corresponding to different social and cultural activities. The tallest pole is erected on the Nga Ra Festival (about 10m - 15m). The pole body is decorated with two-color black and red patterns, symbolizing heaven and earth. The pole body is also hung with Gu sets (wooden painted or carved with images or motifs that represent the spiritual elements of the Cor people) and an altar. The Gu set is only found in the Cor people. These can be considered unique works of sculpture and folk painting.

Along with the Gu set, the pole is also hung with wooden swallows. On top of the pole is also attached a swallow. The Cor people consider swallows to be birds sent down from the sky to help them. Therefore, the Cor people never hunt or eat swallows. Every time the pole is erected, the Cor people must perform a ceremony with very sacred rituals. The pole is the spiritual bridge of the Cor people with the gods.