Advance White is a 12" x 24" porcelain tile. A glaze is fired onto the body, which is what carries the colour and pattern. A PEI 4 rating suits heavy residential and light commercial floors. It carries an R10 slip rating, which is the usual choice for a kitchen or bathroom floor. It is frost resistant, so it can run from an interior floor onto a covered porch or patio. A box holds 7 pieces and covers 13.56 square feet. Made in Spain.