Package include: 6Pcs United States Air Force Logo Iron On Sew On High-end Embroidered Patch. Material: Fabric, with the hot melt glue on the back(Can be sew on or iron on) HOW TO USE: 1. Heat the iron above about 150°C. 2. Place the patch face up at the desired location on your garment. 3. Cover the patch with a cloth to prevent scalding the patch. 4. Apply pressure for about 15-30 seconds without moving the iron. 5. Once the garment is cool, turn it inside out and iron the back of the patch for 10 to 30 seconds. 6.If you want the applique more secure, you can sew along the side of the edges. 7. Now enjoy your brand new customized garment with the new patch!