YOUYIEN 6.5 Foam Speaker Enhancer Kit (4pcs),Fits for 6" 6.5" Car Door Speaker, Universal High Rebound Sponge Bass Blocker Kit with High Rebound for Stereo Audio

Product Function : The Foam Speaker Enhancer Kit prevent the sound quality from spreading, Absorbs the echo from the car door, Enhances the sound effect of the horn, and strengthens the sound effect.. Product Material : Foam Speaker Enhancer Kit use high-quality foam material make sure the product is soft and elastic. Make it weather-resistant and stable, not affected by high or low temperature, and stable sound insulation. Product Size : Outside Diameter 7.7inch，Inner Diameter 5.7inch，Height 0.98inch.. Application Area : Universal High Rebound Sponge Bass Blocker Kit are perfect for the universal 6"" and 6.5"" speakers which are suitable for the most of car speakers.. Note:Foam speaker ring use Self Adhesive double-sided sticker adhesive has strong stickiness, is not easy to fall off, and is easy to install.