Onyx Gem Bianco is a 24" x 24" porcelain tile with rectified edges, which allows a tighter grout joint. The face carries the veining of natural marble. A polished surface reflects light and reads brighter in a room. A PEI 2 rating suits walls and light-traffic floors such as an ensuite. It is frost resistant, so it can run from an interior floor onto a covered porch or patio. A box holds 4 pieces and covers 15.49 square feet. Made in Turkey.