Exodus 26:4-5

Context
26:4 You are to make loops of blue material along the edge of the end curtain in one set, and in the same way you are to make loops ¹  in the outer edge of the end curtain in the second set. 26:5 You are to make fifty loops on the one curtain, and you are to make fifty loops on the end curtain which is on the second set, so that the loops are opposite one to another. ² 

Exodus 26:10-11

Context
26:10 You are to make fifty loops along the edge of the end curtain in one set and fifty loops along the edge of the curtain that joins the second set. 26:11 You are to make fifty bronze clasps and put the clasps into the loops and join the tent together so that it is a unit. ³