Make loops of blue material on the edge of the end curtain in the first set, and do the same for the end curtain in the second set.
Jewish Publication Society of America Version (JPS1917) - Exodus 26:4 >And thou shalt make loops of blue upon the edge of the one curtain that is outmost in the first set; and likewise shalt thou make in the edge of the curtain that is outmost in the second set.