Acrylic Tumbler 16 Piece Set, BPA Free (22-Ounce x 8 / 13.5-Ounce x 8) Made from Acrylic to provide glass-like clarity and greater durability. Eight 13.5 oz Old Fashioned style / Eight 22 oz Hi-Ball Tumblers Top rack dishwasher safe. Won't break, chip, or crack. Bpa free.