Patch embroidery fusible iron to jackets, vests, hats, shirts or sew in to velcro, jackets leather and kimonos. Follow the instructions below correctly. 1- Adjust the thermal pressure to 340 degrees Fahrenheit (170 degrees Celsius) or cotton iron. 2- Position the embroidery on the part. 3- Protect the embroidery and the piece with white cotton fabric. 4- Application with thermal press, 15 to 30 seconds depending on the thickness of the fabric. Application with iron, press the iron 30 to 60 seconds depending on the thickness of the fabric. Repeat the process on the back. 6- Wait for it to cool. The embroidered thermo-adhesive fits perfectly into natural and synthetic fabrics that have no repellent treatment, these fabrics and leather parts should be applied with stitching. If properly applied it has undetermined durability. It can be machine washed but never with hot water.