Sun Wukong (そん ごくう (Son Gokū?) in Japanese) from the popular Chinese classic tale, Journey to the West. A pole known as the Ruyi Jingu Bang (如意金箍棒, Cintamani Golden-bound Cudgel?), it was originally the Dragon King Au Guang's keepsake and remained as a pillar held in his underwater palace on the ocean floor, once used by the Yu the Great in his pursuit and studies of flood control.The Gokuu Pole originates from the weapon of the trickster hero
Weighing 18,000 pounds, or nearly 8.5 metric tons, capable of changing its size, obedient of its master's command, and capable of splitting into many, the pole was considered ultimately worthless and impossibly unwieldy, and remained so until Sun Wukong changed its size at his command.