4x1.5 inch. Embroidered Patch with Plastic Iron on Backing. Patch can be sewn on to Leather Vests, Jackets or Chaps. Patch can also be ironed on to Denim Shirts, Hats or Bags. Iron on Patch at 280 Degrees Fahrenheit for 30 Seconds. Ironing on Application is a semi permanent way of attaching patches. Sew on the Patch for Permanent application. Do not iron on patches to Leather or Nylon Materials.