Exodus 26:24

they shall be separate beneath , but joined at the top , at the first ring . Thus shall it be with both of them; they shall form the two corners .

At these two corners they must be double from the bottom all the way to the top and fitted into a single ring; both shall be like that.

And they shall be coupled together beneath, and they shall be coupled together above the head of it unto one ring : thus shall it be for them both; they shall be for the two corners.