1EXCELLENT REPLACEMENT: Antenna sealing ring kit, perfect replacement for Mercedes E Class W210, replacement for Mercedes A Class W168. 2PART NUMBER: According to the original factory specifications, replacing reference OE number is A2108270031. 3COMPREHENSIVE PROTECTION: The antenna sealing ring can provide more comprehensive protection for the car antenna, prevent it from being damaged or falling, and keep it clean as new. 4DURABLE MATERIAL: Made of highquality rubber material, it has the characteristics of durability, stability, wear resistance, oil resistance, aging resistance, and long service life. 5RIGOROUS TESTING: Has been tested for airtightness and waterproofness before leaving the factory, and passed the factory inspection, which is durable and stable in performance.