Excellent Material: Made of high-carbon alloy steel, it has high strength and wear resistance, and can withstand greater weight and pressure. It can effectively avoid the trunk from being accidentally closed or dropped, improving the safety of the trunk.Automatic Lifting Design: Designed as an automatic lifting spring, it can provide auxiliary support when opening or closing the trunk, reducing the force of opening and closing, making the operation lighter and more convenient.Full-thread Screw Adjustment: Because full-thread screws have more threads, they can provide greater torque and more contact area when connecting, making the connection more stable and reliable, and effectively reducing loosening and falling off.Easy Installation: Designed to directly replace the original spring, the installation process is simple, no complicated modifications are required, and it is suitable for various models. Made of high-quality materials, it has a long service life, is not easily deformed or damaged, and can withstand the test of long-term use.Packing Details: You will receive two 5.9"-9.44" silver car trunk automatic lift springs, two clamps. You can buy with confidence. If you have any questions or concerns, please feel free to contact us and we will provide you with the best customer service.