Sierra Subway York 12 x 11 3/4 Inch Glass and Stone Mosaic Wall Tile (10 Pcs/9.8 Sq. Ft. Per Case, $1 Standard Shipping) Smooth glass and natural slate stone mosaic tile Natural stone and colors will vary from tile to tile Easy to install 11.75 x 11.75 x .5 mesh mounted tiles PEI 0 is suitable for walls and residential use only Sold by the case, 10 sheets cover 9.6 square feet