A. This car audio modification pad is designed to enhance the car audio effect. It is made of sturdy waterproof plastic material, which can effectively prevent moisture from intruding, provide a stable working environment for the speakers, and extend the service life of the speakers. B. It has a size of 6.5 inches and is highly versatile, suitable for most car models on the market. No matter what kind of car you drive, you can easily install this pad to upgrade your car audio. C. The sturdy design ensures the stability of the pad, better fixing the speakers, reducing resonance, and 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 are on a daily commute or a long - distance trip, you can immerse yourself in the wonderful world of music. D. Whether you are a music lover or a car owner who pursues a good driving experience, this car audio modification pad is a good choice. It will bring a qualitative improvement to your car audio and make every journey filled with wonderful melodies.