Ambit Block Black and White 11 3/4 x 11 3/4 Inch Glass Mosaic Wall Tile (20 Pcs, 19.2 Sq. Ft. Per Case) Smooth translucent glass wall tile Unglazed smooth finish with a high sheen and a uniform appearance in tone Easy to install 11.75 x 11.75 x .1875 mesh mounted tiles PEI 0 is suitable for walls and residential use only Sold by the case, 20 pieces cover 19.2 square feet