8 inches diameter protective cover for car horns or subwoofers. It has a reinforcing effect of the high voice. Also a stylish decoration for your car vehicle. Rugged design protects your subwoofers or horn. Low profile design works with most enclosure types. Protects your subwoofer from cuts, rips, tears and dents. Metal mesh construction resists impacts even from heavy objects for maximum protection. Mainly prevent dust and other debris from the front of the vibrating plate into the magnetic gap caused by the abnormal sound. Note: please make sure the dustproof cover fits your car horn before buying. Package includes: 4 x car subwoofer cover