The Sonex Harmoni Ceiling Tiles are made from a Class A Fire Rated acoustical foam and comes with a hypalon coated surface. This special coating adds durability, prevents dust and dirt penetration and easily wipes down with a damp cloth. The Sonex Harmoni Tiles are available in white, grey, black or almond (beige) in two different patterns each with a tegular edge to allow the tiles to drop below a ceiling grid. The Vista patterns has a smooth surface for a clean look. The Tartan style has a softly sculpted pattern for a different look. The soft, pliable, fiber free foam is resistant to crumbling and broken edges making cutting around corners, sprinkler heads or heating and lighting fixtures quick and simple.