SomerTile FCG18ERS Albe Porcelain Floor and Wall Tile, 17.375" x 17.375", Grey/Beige/Brown First-quality porcelain tile for floor and wall use Glazed textured finish with a low sheen and moderate variation in tone P.E.I. Rating iv has high resistance to abrasion and is suitable for heavy-duty residential and commercial floor installations C.O.F. Greater than 50 is recommended for standard residential applications and is marginally skid resistant Indoor/outdoor