OverviewProduct Function: Enhance the sound effect of the speaker, eliminate noise, and make the sound more concentrated. Take the time to install some sound deadening material on the inside and outside door panels and on the back of the door cards - this really makes a profound improvement in the sound quality of any vehicle's door speakers.
tHigh Quality: Made of high-density and high-strength EVA, which is more expensive and eco-friendly than PVC. It's the perfect material for fast foam because it's completely waterproof and will not mold!
tDurable Adhesive: The door foam speaker has double-sided adhesive, this kind of adhesive is strong, not easy to fall off from the speaker, it can be used for a long time, don't worry.
tWhat you Get: There are 4-pack car door speaker fast rings in the packages, after installation, you can enjoy 360-degree surround mid-bass in your car.
tApplication 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.