0.99 square foot per piece, each piece sold individually. Piece weight equals 3.75 lbs. Grade 1, first-quality glass/stone tile for wall use 11.75 in. width x 11.88 in. length x 0.4 in. thick mesh-mounted mosaic Unglazed, mixed texture with a mixed finish and moderate variation in tone PEI Rating 0 is suitable for wall use only Impervious tiles have a water absorption of less than 0.5% for indoor and outdoor use and are frost resistant DCOF value is not available for this product. Please reference the PEI and MOHS rating for installation. Completely frost resistant for indoor or outdoor applications; use a latex-modified thinset for acceptable bond strength Imported