diffusore mk sound iw5mkiiGrilles M&K's Architectural frameless, low profile, metal mesh front grilles are a subtly elegant virtually invisible element in any living space that can be painted to match the surrounding wall. For vibration free mounting, the M&K in wall grilles are fitted with multiple rubber coated neodymium magnets with more than enough strength for safe in ceiling use. Hardened Steel Baffles The specially modified M&K drive units are mounted in solid steel