Easy to use, eliminating disassembly problems of the back cover. Instllation is simple,you can have the hook hung very quickly. Lets you spend a bit,enjoy the convenience of high-end setup. and high quality. If your car trunk has remote control function, but will not be lifted, you can add this spring,then automatically open rises,to prevent the disassembled from mentioning the lid problems. With automatic design, you can adjust the height yourself. Fixed in the car trunk, it can prevent the trunk from hurting the head. Flexible and adjustable Specification:Car trunk Lifting Colour:Silver Material:Metal Size: shorter 15cm,longer length around 24cm (Flexible and adjustable) Package Contents: 2 * trunk Lifting Device set(4 * Spring Automatic Lifting Device+4 * snap) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.