Pellon-Fabric Magic Shrinking Interfacing: White. Great for apparel and accessories projects, children's toys and innovative home decor. A sew-in interfacing that shrinks up to 30% to add texture and dimension to projects. Results are permanent and will last through laundering. Made of 100% Polyester. This package contains 20 yards of 20 inch wide fabric magic shrinking interfacing. Made in USA.