Personalize your projects with iron-on fabric! Just cut out shapes, position shapes on project, fabric side up, then iron for 30-35 seconds using a dry iron on cotton setting. Let cool 1 minute. 100% cotton exclusive of fusible backing. Do not pre-wash. Spot clean as needed. We recommend stitching edges of shapes after fusing if applying to machine washable items. Hand wash in cool water and hang to dry.