OPTICSTONE

[ composite tiles comprised primarily of metal, including those having one or more layers and a facing layer of glass ]

tiles, not of metal; tiles, not of metal for buildings; tile floorings, not of metal; mosaics of stone or glass for building, not of metal; non-metal composite tiles including those having one or more layers and a facing layer of glass

[ mosaics, not of metal, namely, art tiles made of glass and ceramic ]