Exodus 36:9-11

King James Version

⁹ The length of one curtain was twenty and eight cubits, and the breadth of one curtain four cubits: the curtains were all of one size.

¹⁰ And he coupled the five curtains one unto another: and the other five curtains he coupled one unto another.

¹¹ And he made loops of blue on the edge of one curtain from the selvedge in the coupling: likewise he made in the uttermost side of another curtain, in the coupling of the second.