The Plastic Tumblers by Libbey: Stacking Beverage, 12 oz., impact & shatter-resistant, dishwasher safe, freezer safe, temperature resistant up to boiling point, Tritan, BPA Free, Infinium DX, (H 6 T 2-7/8 B 2-1/8 D 2-7/8) ( Libbey - 109437 )