iDream Iron on Patches Embroidery Applique Decoration for Clothes L2-S23 (Pack of 13) Easy to sew on and iron on. Mix different styles in different colors embroidery applique. The Iron-On or Sew-on Patches are the perfect decorative addition to a wearable garment or a craft project. Instructions: - Set iron to hottest setting. Do not use water or steam. - Cover patch with a fine cloth. - Press firmly with iron for about 45-60 seconds. - Repeat ironing on the reverse side. - Allow patch to cool before testing. - Repeat the process if needed to ensure the patch is secure. NOTE: 1.Do not iron patch on delicate cloths, or any materials that will fail under extreme heat such as leather, satin, or nylon. 2.There is no Velcro on the back of the patch.You need to sew it or Iron on your clothes or using other tools.