Product: Black Twill Dust Cover Size: 27.00cm*27.00cm*32.00cm Material: nylon fabric Applicable models: for Bose S1 Pro for Bose S1 Pro Strong K306 mesh fabric surface sound transmission mesh mesh mesh even sound transmission Sturdy and solid does not affect the music playback no need to disassembly Side Velcro adhesive opening design easy to open and use speaker buttons and cable hole connection. Molded to fit snugly and true to size.