'Rod' in the Bible

Then I was given a measuring reed like a rod, with these words: “Go and measure God’s sanctuary and the altar, and count those who worship there.

The one who spoke with me had a gold measuring rod to measure the city, its gates, and its wall.

The city is laid out in a square; its length and width are the same. He measured the city with the rod at 12,000 stadia. Its length, width, and height are equal.