Exodus 36:29

And they were coupled beneath, and coupled together at the head thereof, to one ring: thus he did to both of them in both the corners.

They were double beneath, and in like manner they were all the way to the top of it to one ring. He did thus to both of them in the two corners.

And they were double beneath; and in like manner they were entire unto the top thereof unto one ring: thus he did to both of them in the two corners.

and they have been twins below, and together they are twins at its head, at the one ring; so he hath done to both of them at the two corners;

coupled together from bottom to top and fitted into a single ring. He made both corners in this way.