Feature 1Made of quality cotton material, sound insulation effect is very good, meet your needs. 2Outside diameter is approx.19.5cm/7.68in; inner diameter is approx.14.5cm/5.71in. 3Absorb the echo of the car door, enhance the sound effect of the horn, enhance the sound effect in the car, and seal the vibrations. 4Easy to install, no complicated tools required, convenient to use, save time and effort. 5Manufactured according to the original production specifications, in line with strict quality standards.Item Type:Speaker Cotton PadMaterial:CottonColor: BlackFitment: Universal .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xSpeaker Cotton Pad