This car audio modification pad is specifically designed to enhance the car audio effect. It is made of solid waterproof plastic material, which can effectively prevent moisture intrusion, ensure a stable working environment for the speakers, and extend the service life of the speakers. It has a size of 6.5 inches and is highly versatile, fitting most car models on the market. No matter what kind of car you drive, you can easily install this washer to upgrade your car audio. The solid design ensures the stability of the washer, which can better fix the speakers and reduce resonance, making the sound purer and clearer. Installing it is like equipping your car audio with a professional "protective cover" and "stabilizer", creating an immersive music experience for you. Whether you're on a daily commute or a long - distance trip, you can immerse yourself in the wonderful world of music. Whether you're a music enthusiast or a car owner who pursues a high - quality driving experience, this car audio modification pad is an excellent choice. It will bring a qualitative improvement to your car audio and fill every journey with beautiful melodies.