VELCRO Brand - Iron On, Heat Activated Fabric Adhesive - 1 in x 3/4in Strips - Black NOTICE: Amazon is a trusted seller of Velcro Brand products. Warranty will not be valid on any items purchased through third-party sellers. Perfect for thicker fabrics or ones that are harder to sew Bonds to most heat tolerant fabrics including cotton blends, polyester, fleece, suede, canvas, denim and nylon. For delicate fabrics, a press cloth is recommended Washable and dry cleanable. (Close fastener when laundering.) Velcro Brand offers a variety of sew on fasteners for all your uses