1. . Made of high-quality zinc alloy, it does not fade, does not drop the crystal, perfectly fits, firmly fits, removes no residue, and does not damage your car. Make your car look exquisite and beautiful. 2. Applicable models: This air-conditioning switch knob cover is suitable for new 5 series and 3 series. Please confirm your model before buying. 3. High quality: The air conditioner control knob is made of high-quality aluminum alloy, which is not easy to deform or break, and has strong corrosion resistance and durability. 4. Convenient installation: direct installation, no need to drill or paste, just press the button cover into the original air conditioner button. 5. Function: The switch button knob trim can protect the original parts of your car. Exquisite decoration can enhance the appearance of your car's interior and provide a unique decoration style to make your car look more luxurious. Type Name: Air Conditioner Knob Decoration Cover Notice: Before installation, please keep the surface clean and dry, free of sand and dust 15 degrees Celsius, you can use a hair dryer to heat the product and tape before installation Please keep the product from moisture and dust within 24 hours after installation , using factory parts design to fit and complete Material:Zinc alloy colour:Silver Package Contents: 2 * multimedia knob bezels Only the above package content, other products are not included. Note: Light 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.