Hanoi Sky Blue belongs to Centura's Hanoi range and measures 2.5" x 8". Wall installation is the rating here, so backsplashes and shower surrounds are in scope and floors are not. One box contains 38 pieces, enough for 5.16 sq ft, or 0.1358 sq ft a piece. Ceramic fires lighter than porcelain and scores cleanly, so it handles the cuts a backsplash or surround demands.