Easy installed and No modification needed , tape is at the back. Installation: Step 1: Please clean the area and eliminates the substance before mounting this product. Step 2: To check the installation area according to the vehicle and then release the back of tape paper (double-sided tape, a label) is removed Step 3: Products are equipped on the vehicle with exactly and use a clean cloth to press evenly is attached. Step 4: Products within 24 hours after installed, please avoid washing your car and touching the water. Tips: Sub-zero weather during the winter, the adhesion tape adhesion is getting weak .You could heat the place of tape with a heat gun Description: Condition: 100% Brand new Material: ABS Color: carbon color Package Contents: 2pcs * C-HR Rear Window Spoilers Wing Cover. Only the above package content, other products are not included. Note: Light shooting 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.