You can raise the rear trunk lid automatically with this spring, helping you to avoid the trouble of lifting the lid with your bare hands and preventing the lid from being lifted and hitting your head. With its good toughness, this trunk spring will not be easily decompatiblemed and is a good choice compatible car modification. Besides, it is easy to install and will not fall off easily, so you can use it with confidence. It is constructed of metal material. This spring is 14cm in length and can be adjusted up to 24cm. This product is only available compatible most three-box cars, suv are not available. Not suitable compatible type: tailgate main rod wrapped with sound insulation cotton, tailgate hydraulic rod structure, etc. Item Name: Trunk Spring Material: Metal Features: Good Toughness, Corrosion Resistant, Flexible Size Details: Spring Length: 14cm/5.51" (Approx.) Extension Size: 24cm/9.45" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 x Trunk Spring 2 x Clamp