Description This acoustic damping plug is designed to enhance the sound quality of your speakers by reducing unwanted noise and vibrations. Made from sponge material, it fits into the port tube of your speaker cabinet, ensuring a secure fit. Ideal for both home and professional audio setups, it helps to achieve a precise bass response. Features -Color:Black -Material:Sponge -Size:5.30X5.30X5.00cm/2.08X2.08X1.97in -Vibration reduction: the sponge plug helps to reduce vibrations, wind noise, enhancing the listening experience -Improved bass reflex: the sponge plug provides better bass reflex for speakers, improving the bass response of various speaker -Easy installation: simply insert the sponge plug into the speaker's air vent and guide hole for quick and convenient installation -Versatile application: suitable for upgraded speakers, speaker boxes, home speakers, car speakers, portable speakers, and subwoofers -Speaker port compatibility: the sponge plug can be used for speaker port tubes, speaker box bass ducts, and speaker cabinet port tubesPackage list: 2 x Speaker Port Tube Sponge Plug