This Heat N Bond on a roll is a Fusible Hem Tape. This double-sided tape allows you to hem curtains, apparel, and more without sewing. Heat N Bond Fusible Hem Tape creates a permanent bond when ironed and is not meant to be sewn. Heat N Bond Fusible Hem Tape is available in regular and extra-strength. The regular measures 3/8in by 10yds and the super-strength measures 3/4in by 8yds. Made in the USA.