The Jelly Roll Sasher has been designed to thread the Jelly Roll fabric (2.5" strips) and batting strips in one fluid motion. Just layer the strips and get the folds to meet in the center back. Then thread the strips into the Sasher. The Sasher will fold the strips as you pull the Sasher, and you can feed the folded strips straight to your sewing machine for stitching. No ironing! Make Jelly Roll Rugs, mats, bags, runners, placemats, bowls etc.