... warning and direction 30x30 Specificationsblind tile,tactile tiles, indicator tile 1.Material:porcelain tile ... resistant Tiles,Porcelain Floor Tiles,Ceramic Tile, Floor Tile,Ceramic Floor Tile,Tiles Floor Ceramic,Modern tile, Tiles Ceramic, All Kinds of Tiles, Tile for Sale,Floor Tile ... stop, turn, warning. Combine the two tactile tiles, enable visually impaired people identified independent direction ...