1. Place patch on any where of cloth directly. 2. Cover a thin cloth on patch, and then iron on, Avoid using iron directly on patch to protect the patch under high temperature. 3. Keep pressing the iron around 40-60 seconds and temp. Approx. 120'C-150 'C (Depends on the thickness of cloth. 4. Move out iron, wait for cool down completely. 5. If adherence is not perfectly, please repeat action ③ ④.