Re: Red Snappers Quilters: I used four long pieces of 1.5 inch wide cotton fabric, cut on my Accuquilt Studio. I shifted my sewing machine needle as far to the left and stitched down the flat strip to the back of the canvas leader. Backstitched at top and bottom, and then shifted my machine needle to the far right and did the opposite side. The fabric is thin, therefore, its casings are thin. Just the right thickness to encase the plastic rods and really easy to snap the uppers to.