These speaker port tubes are versatile and can be used in various audio applications, including subwoofers, bass woofers, and guitar speakers. They are for enhancing the performance of system, whether it's for a home theater, car audio setup, or a . Experience the difference with our expertly designed port tubes. Features -Color:Black -Material:ABS -Size:11.00X9.00X7.20cm/4.32X3.54X2.83in (T-127Speaker) -Size:15.50X12.70X11.50cm/6.09X4.99X4.52in (Big speaker) -Enhanced low frequencies: precision designed to boost low frequencies, delivering a more powerful for home theaters and audio systems -Sound: effectively reduces distortion, ensuring sound , ideal for music seeking the audio experience -Userfriendly installation: compatible with a variety of speaker models, making it easy to your audio equipment and enhance your entertainment setup -Advanced: the innovative design airflow, extending the life of your speakers and reducing maintenance costs -Sleek design: the unique "small waist" design not only provides excellent functionality but also adds a modern, stylish touch to your interior decor Package list: 8 x Speaker Cabinet Port Tube