Doesn't look like they are iron on, but it is so easy to attach these with either fabric glue it or use iron on, no sew strips! Can get them really cheap with a coupon at any craft store! The no sew strip looks like tape and you iron it between two fabrics and it hold really well! I use it to hem pants, shorten curtains or just about anything that I don't want to sew! It is great to have on hand!