Features: Specifically designed for front doors, these speaker spacers enhances sound quality by reducing resonance and noise interferences, providing improved auditory experiences . Crafted from anti vibrations PVC material, these spacers ensures long lasting Performances without deformation or aging, featuring a lightweight designs that doesn't burden the car door. Ideal for car owners, sound enthusiasts, and little consumers who value personalizes in car entertainment and seek to upgrade their vehicle's sound Systems. Perfect for sound upgrades or modifications, these spacers are essential for enhancing daily driving music enjoyment, showcasing sound improvement at car meetups, and elevating travel entertainment during road trips. With easy installation Tool and instructions included, users can effortlessly install these spacers without professional skills, ensuring a seamless fit and enhances seal between the speaker and car door to preventing sound leakage and external noise. Specifications: Material: pvc Internal diameter: about 268mm/11inch Package Includes: Pair Speaker Spacer note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.