The edges of the Halo are slightly rough and rubbery. This allows the Halo to easily grab your quilt and allows you to quilt smoothly. Place your Halo on top of your based quilt. Slide your quilt and the halo under the foot of your machine. You may have to remove foot to place the Halo, then put the foot back on. Hold the edge of the Halo with gentle pressure, this will give you the control that is needed to quilt beautiful designs.