Premium Material: The speaker cover is made of iron material with a black finish, which is rust resistant and high strength, impact resistance and lightweight. It's durable to use and can maintain a long lifespan. Wear Resistance ---------- The metal book speaker cover is suitable for home speakers or car interior speakers, improving the grade, anti scratch, anti wear. Will not flex back and forth when pushed by hand. The speaker protector ---- The horn cover adds additional protection to your bass gun, thereby protecting your bass cannon from cutting and dental effects Wear ResistanceThe metal book speaker cover is suitable for home speakers or car interior speakers, improving the grade, anti scratch, anti wear. Easy Installation: Four screw holes are reserved on the speaker cover, which can be installed with screws, making the operation more convenient.