1. Park the car in a safe location and unscrew the screws 2. Pull outward to separate the old lift support 3. Check whether the new lift support fits with the original installation position 4. Align the new support rod with the ball head and push it inside 5. Snap the other end into the screw as well and the whole installation name:Rear Boot Shock Gas Springs Material: Plastic + metal Color: Black Placement on Vehicle:REAR Special Features:Lift Supports Props Rod Arm Shocks Strut Bars Part Number: 51247148902 Fits: For R56 2002-2014 [Durability & Vibration Resistance]The shock strut is made of high quality material, so it is non-rust, more tolerant vibration and temperature extremes, as well as has long service life. [Easy To Install]Easy to install, direct installation, no other modifications needed. The installation method is as follows: Professional installation is highly recommended (No Instruction Included) Package Contents: 2 x Rear Boot Shock Gas Springs 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.