Pellon Wonder-Under is the original paper-backed fusible web. It fuses effortlessly in seconds and is machine stitchable. Made using acid-free polyester this fusible interfacing will maintain a soft hand after fusing. Wonder-Under is great for apparel, home decor, and craft projects. It bonds fabric to fabric or any porous surface like wood and cardboard. Wonder-Under is machine washable, and it's recommended that you tumble dry on low and do not use fabric softener. Each roll meausres 15" wide by 2-yards long.