Flexible trim: The car edge trim with individual internal metal clips, edge trim is easy to cut. Multi-Use: This seal can be used for a variety of applications such as car door edging, engine edging, weather sealing, childproofing, weather stripping and adding edging to any solid material. Easy to use: Install in less than 5 minutes. Simple cut your desired length and use a mallet to ease the seal into position. Methods of installation: 1. Clean the door edge of your car to remove any oil, wax and dust. Make sure the door is dry before continuing. 2. Uncover the tape from the tip of the lining and peel the red strip off the tape by approximately 2 inches. Note: ensure the tape is installed inside the door. 3. Start from the top, insert the lining onto your door edge until the lining is fully seated. 4. Press the lining with your thumb along the door edge until it is fully seated, then pull the red strip off. 5. Repeat step 4 until all edges are protected. 6. Use scissors to cut away unused lining for other door edges. 7. Let the lining dry up by itself and do not get wet for at least 12 hours. Note: truck/van owners, please check your door edge thickness before purchase.