Firefighter EMT Staff of Life patch 3" NEW Top quality die cut twill patch with rayon embroidery thread Sew on the patch onto Leather Jackets or Vests Iron or sew on the patch onto Denim Materials. To properly iron on the patch, temperature is important and must be between 260-280 Degrees Fahrenheit. 30 Seconds of applied pressure at the correct temperature is needed using a household iron. 12 Seconds is enough if using a heat press. No tracking on small, flat items with order total under $10.00. Upgrade shipping or enjoy a FREE upgrade to include tracking on orders $10 up!