SomerTile GDRCOTAG Fused Glass Mosaic Wall Tile, 12" x 12", Brown/Tan/White/Copper/Gold First-quality glass tile for wall use Unglazed smooth/slightly textured finish with a high sheen and a slight variation in tone P.E.I. Rating 0 is suitable for walls and residential use only Wall tiles are not C.O.F. Rated Mosaic chip width (in inches): 0.75 & mosaic chip length (in inches): 0.75; 13.27 sq. Ft. Per case -Indoor/Outdoor