Introducing the Simple Modern Classic Stainless Steel Tumbler Set, which comes with two-pieces of 24 oz tumblers in blue and white colors, featuring an ocean geode pattern. This twist-lid tumbler keeps your cold beverages chilled for 24 hours and is perfect for adults to use at home or on-the-go. Its insulated stainless steel material makes it sturdy and machine washable for easy maintenance. This tumbler set from the brand Simple Modern also includes a lid and straw, making it convenient to sip your favorite cold beverage. See pictures for further details.