About this item Exquisite craft, wear-resistant, help to get nice audio effect for low pitch sound. Enhance the bass and make your speakers sound great. Can replace the old 12-inch rubber side, can replace for Swans horn. Remove the old rubber edge and clean the glue. Replace it with new ones. (No glue). Made of high quality rubber, it is flexible, anti-aging and . Protect the speaker from dust and make it cleaner.