QG 26 Ounce Clear Smoke Light Grey Plastic Iced Tea Cup Square Base Tumblers Set of 6 6 pieces 26-ounce highball tumblers. Each tumbler 6-5/8 inch tall and 3-1/2 inch mouth diameter. Made of durable BPA-free acrylic material. Provide glass like clarity and greater durability. Great for indoor and outdoor use.