Car Door Speaker Insulation Self Adhesive Car Speaker Ring Foam Baffles Universal Car Foam Speaker Enhancer System Kit 65 Inch The Foam Speaker Enhancer is perfect for audiophiles who demand clarity and stability in their car's sound system. The acoustic sealing protects your speakers from damage while improving the sound quality. Specifications: Material: foam Placement: car door Product Size: Diameter: about 19.5cm/7.68 inches Inner diameter: about 14.5cm/5.71 inches Height: about 2.5cm/0.98 inches Notice: Due to different lighting and screen settings, item color may vary slightly from picture. Due to different manual measurements, please allow 1-2cm differences in size. Packing List: 1*Foam Speaker Enhance See more product details 1.Sound Enhancement: Experience better sound quality with our Car Speaker Rings that create an acoustic seal, delivering optimized performance for unparalleled acoustic clarity and quality. 2.Optimized Audio Quality: By absorbing the rear waves generating by the speakers, this car speaker ring prevents the front and rear waves from canceling out, reduces the panel vibration, and improves the clarity and stability of the sound quality. 3.Prevent Sound Diffusion: Experience clearer and more dynamic audio in your car with our Speaker Rings. Designed to absorb door echo and prevent sound diffusion, they enhance the sound effect of speakers. 4.Excellent Durability: The foam material of our Car Speaker Ring helps to absorb vibrations, resulting in a crisper, clearer sound. Suitable for all car models and speaker sizes, it's easy to install and remove while remaining lightweight and durable. 5.Service Life Prolonged: Sealing the space between speaker and car door with the Car Speaker Ring protects speakers from damage and insulates against outside noise and interference, ensuring long-lasting performance and service life extension. _x000D_