Auto Trunk Automatic Lift Tailbox Automatic Lift General Spring Car Car trunk lifter Trunk Lid Automatically Open Tool Spring Auto Trunk Automatic Lift Tailbox Automatic Lift General Spring Car Car trunk lifter Trunk Lid Automatically Open Tool Spring Material: Metal. Color: As the picture Size: Shortest 15cm,Largest length about 24cm (Flexible and adjustable) If your car trunk have function of remote control, but will not be rising box, you can add this spring, after then, open will automatically rises box, to avoid the unarmed to mention the lid of the trouble. With automatic design, you can adjust the height by yourself. Fixed on the car trunk, can prevent the trunk damage head. Flexible and adjustable. _x000D_