'Scroll' in the Bible

Again I looked up, and I saw a scroll flying in the air!

And the angel said to me, “What do you see?” And I answered, “I see a flying scroll; its length is twenty cubits (thirty feet) and its width is ten cubits (fifteen feet).”

Then he said to me, “This is the curse that is going out over the face of the whole land; for everyone who steals will be cut off according to the writing on one side, and everyone who swears [oaths falsely] shall be cut off according to the writing on the other side.