Pellon 987F Fusible Fleece is a one-sided fusible fleece that adds a layer of softness, body, and stability to home decorating, craft and apparel sewing. No Pinning! No Basting! No Sewing! Can be fused to fabric, cardboard, or wood. It is completely sewing machine safe. Black works especially well with dark fabrics. Most of our products have either a dot adhesive or a spray adhesive. The dot adhesive is on the rough side, where you can usually see the dot. The spray adhesive is the shiny side. When in doubt, take a small sample and test it covering both sides with a paper towel or fabric so you can ensure that you do not make any fusing mistakes.