Oyster Gray 4 x 12 Glass Mosaic Subway Tile is modern elegance done right. These beautiful gray crystallized glass backsplash tiles reflect light throughout a room, adding visual interest while providing a soothing backdrop. Grey never looked so good Suitable for a variety of interior and some exterior design projects, including backsplashes, accent walls, vanity walls, and showers this tile offers extreme design flexibility and coordinates with a wide variety of color schemes.