Extra firm, nonwoven white ironon fusible craft interfacing. 100 polyester, 60" x 1 YD increments. Backed by a dry adhesive film that is activated by heat, HeatnBond interfacing forms a nosew bond three times stronger than other traditional fusible web without adding weight or stiffness. With a low temperature and short pressing time, it allows for a wider range of materials to be bonded. There is no seam or pressing cloth needed, and it will not lift or pucker after washing. Machine washable.