ITEM NAME:Carbon Fiber Antenna Shark Fin Cover Trim for BMW F20 F21 F45 F46 F26 F15 F S2M1 Carbon Fiber Antenna Shark Fin Cover Trim for BMW F20 F21 F45 F46 F26 F15 F S2M1 Installation Method: 1. Clean the area and eliminate any impurities before mounting this item. 2. Align this item with target-position accordingly and peel off the 3M tape backing. 3. Press the item evenly after proper alignment. 4. Avoid any situation that might wet this item within 24 hours after installation.