High Quality Stainless Steel: The car trunk lid springs are made of high-quality high-carbon steel alloy metal, which is strong and durable, and corrosion resistant. The trunk spring tool has a long service life and is not easy to deform. Compared with ordinary trunk springs, it is more reliable and is not easy to remove after improvement. Full Screw and Anti-Breakage: Unique car trunk lid spring design, full screw adjustment, anti-breakage conical limit, reinforced spring ring, force can be adjusted. Adjust the force size across the length of the screw to make the opening just right. You can adjust the length yourself. The size of the trunk opening depends on the length of the spring. Easy to Install and Use: The car trunk lid springs are easy to install. Simply adjust the spring screws according to the size of the trunk. To facilitate the installation of the fixed spring and adjust the force to achieve the best switching state. The car trunk lid springs can be easily installed by novices and veterans. Convenient and Practical: The trunk opens automatically with the press of a button, and it is easy to open when holding a shopping bag or school bag. If your car trunk has remote control function but does not open fully, then you can install this spring and your car trunk will automatically open fully. Notes: The car trunk lid spring is only suitable for sedans without hydraulic lever in the trunk lid. It is not suitable for vehicles with hydraulic lever in the trunk lid. We exercise strict control over every procedure from product selection to manufacturing, quality inspection to logistics. Note: The data are all measured manually, please allow error of 1-3cm Due to differences in light and display, there may be color differences, please refer to the actual item received.