The Plastic Cocktail Glasses by Libbey: Rocks, 8 oz., stackable, impact & shatter-resistant, dishwasher safe, freezer safe, temperature resistant up to boiling point, Tritan, BPA Free, Infinium (H 3-1/2; T 3-1/8; B 2-1/4; D 3-1/8) ( Libbey - 92402 )