I fold my fabric in half again lengthwise, resulting in about a 10 inch tall fabric piece. Next is to roll onto the 6.5" ruler. I use my 6.5 ruler primarily so that I can count the outward layers of the rolled fabric, from the middle out, & know within inches how much fabric is in the roll. I am not organized enough to measure, roll, then attach a paper I can't find the next time I want to use the fabric, so the 6.5" size is a better choice for me. My daughter brought me some dollar store hair clips a couple of years ago. Think of the old pincurl type. Now they are made in all kinds of fancy colors. I use those to secure the outward edge. It, also, lets me know quickly where to start unrolling from.