Enhance your audio experience with our premium sponge plugs designed for speaker port tubes. These plugs help improve sound quality in bass reflex speakers by enhancing clarity and bass response. Made from high-quality sponge material, they are durable and help dampen unwanted frequencies. Easy to install—simply insert the plugs into your speaker's port tube for immediate results. Due to manufacturing variations, there may be slight differences in appearance or printed text between batches, but this does not affect performance. Size (Diameter x Height): 53 x 50 mm Color: Black Material: Sponge Package Contents: 2 x Sponge Plug Note: Other items shown are not included. Please note that lighting and monitor settings may cause slight color variations between the product image and the actual item. Measurement may vary by +/- 1-3 cm.