Installation: Tear off the protective film at end of the sealing strip, tear it along the installation line after determining the position and press and stick it for a few seconds; Material: The sealing strip has good tensile strength and can withstand the tension of frequent opening and closing of the car window; Features: It enhances the car's sealing and makes the windows close tighter; Regularly clean away grit: Fine sand particles easily accumulate in the grooves of the weatherstripping, which not only affects the seal but can also scratch the film surface when raising and lowering the window. Troubleshoot "window raising and lowering noises": If a sharp grinding sound is heard when raising and lowering the window, it usually indicates severe wear inside the weatherstripping. If the noise persists after cleaning, it means the rubber has hardened and lost its elasticity, requiring replacement., Manufacturer: NUOSDEX