These speaker outlet vents are crafted to optimize airflow and reduce distortion, providing clear and powerful sound. The black finish adds a professional touch to your audio setup, making them ideal for both home and professional use. Whether you're setting up a home theater or a portable sound system, these tubes deliver exceptional performance. Features -Color:Black -Material:Plastic -Size:8.00X4.00X4.00cm/3.14X1.57X1.57in -Opening:35mm -Length:80mm -Outer Diameter:40mm -Enhanced bass performance: our subwoofer bass port significantly boosts bass output, providing a powerful and impactful listening experience -Optimized audio clarity: the speaker cabinet port ensures optimal sound clarity and balanced audio, enhancing the overall performance of system -Versatile aesthetic: the black acoustic port tube seamlessly integrates with any speaker design, adding a touch of elegance to your audio setup - durability: constructed from plastic materials, our bass reflex port is designed for durability, ensuring consistent performance over time -Quick and simple setup: our speaker tuning tube is easy to install and compatible with a wide range of subwoofers, making it a convenient choice for audio enthusiasts Package list: 8 x Speaker Port Tubes