Embroidered Patches - Very high quality and detailed design iron on patch!! 3.34 x 3.5 inches These come with adhesive backing that is heat activated, we recommend applying with a heat press. Can be used on: - Hats - Apparel - Bags. The options are endless for your DIY Projects. 1. Pre-press the area where you want to place the patch 2. Place your patches down on the garment 3. Cover your patch/patches with Teflon 4. Press your design for 20 seconds at 385 degrees 5. Flip the garment inside out and press for another 20 seconds 6. Let it cool off and check to make sure all areas of the patch are firmly in place. Repress if needed. Wash on gentle cycle, lay flat to dry. Do not use any fabric softener.