Prevents airflow resonance noise caused by gaps during driving. 4x Door Trim Strips For A4 For B5 Sedan Avant With Clips Set Lestein. This seal fits snugly against the windows, effectively preventing wind, water, dust, and noise from entering the vehicle, creating a quiet and comfortable driving environment. Dustproof: The seal effectively prevents rainwater and dust from seeping into the vehicle, protecting passengers and seats and reducing cleaning and maintenance work. Waterproofing: Sealing strips can prevent rainwater or other liquids from seeping into the car interior to a certain extent., Manufacturer: Liqiao