Features: 1. Plating process, smooth and shiny surface 2. Easy to install, automatically lift the trunk lid 3. If your car have the function of remote control,but trunk is without hydraulic rod,you can choose our product 4. If your car doesn't have the function of remote control,do not purchase. 5.Using this spring can prevent the danger of hitting your head when open the trunk lid. 6.If your car trunk has soundproof sponge, you need 2 pieces. If your car trunk has no soundproof sponge or the soundproof sponge is very small, 1 piece is enough. 7.When installed, please install 1 piece first to see the effect, if OK,up to 1/2 height, complete up is not suggested. Specification: Name: Car trunk boot lid lifter Material: Stainless steel Length: adjustable 15cm-25cm Suitable car models:no Hydraulic rod trunk with remote control function& has a place to hook _x000D_