On the hand-quilting frame that Al made for me, I used pillow ticking. It was great because of the printed lines so I knew I had it on straight. I attached those using velcro (the sticky-back kind) and it has held up really well. The Grace frame I have came with the leaders.\

I'm like Jean, the leader size seems off. I just measured and mine are 8", 18" and 24". I have the Inspira frame.