
Levitation: Ruyi Jingu can levitate itself a certain distance from the ground, to the point that It can be controlled remotely. Making it lighter vastly increases movement speed. Weight Alteration: On command, the staff can become lighter or heavier and the norm for the Monkey King is heavy by many people standards, just placing it onto the floor was able to create cracks in the ground that reverberated up a gigantic hole up to its surface. It can reach incredible lengths, as it was able to reach all the way from the other side of the moon to the earth which is 387874.8 km long. It can grow broader or slimmer and taller or shorter at will. Size Alteration: Ruyi Jingu's size can be altered according to the Monkey King's will. Ogre eventually joined Ruyi Jingu after acknowledging Dan Mori as his master. It is later revealed to us that the Yeoui was made from the Ancient Dragon's bones, but was never completed due to the fact that the ogre's soul was missing. The staff is also deceptively monstrously heavy, with few people besides the Monkey King being able to even lift the staff. A casual strike with Ruyi Jingu destroyed many angels at once, ripped Taek in half, and made a huge tsunami. Ruyi Jingu is able to grow on command to what the owner says and is capable of killing thousands of angels and Nephilims instantly. And when Mori Jin handed the real Yeoui to Uriel, her hands immediately got severed, implying that It was much heavier than Uriel ever anticipated. When Uriel tried to pick up Yeoui (fake), she picked it up easily and thought it (real) was supposed to weigh 1,700,000 pounds or 80,000,000 tons. The Monkey King extorted it from the current Dragon King, Junior. It was later held in the Dragon King's Palace to measure the east sea level. Yeoui was the weapon that the Dragons created from the hip bones of Ogre, the first and strongest dragon, but unlike other Yeoui, It wasn't enhanced by Yeouiju in fear of Orge's power and rage. In the First Heavenly War, Yeoui had a gold band on each end.

The Yeoui takes the appearance of a stone-looking bo staff.
