Warm Tips : 1.Please notice that the decorative garage door hinges and handles are magnetic, only suitable for steel and steel core doors, can not be used on aluminum or wood doors. Do not swallow magnets, keep away from babies and children! 2.Give the door a quick spot clean and allow it to dry before attaching the magnets. 3.Avoid placing handles & hinges across cracks or seams in the door. 4.make sure the handles won't hit the door frame when the garage door opens and closes