Corelle Coordinates by Reston Lloyd Happy Days Acrylic Square Tumbler Glasses, 19-Ounce, Set of 6 Set includes six, 19-Ounce acrylic tumbler glasses for indoor or outdoor use Made from high grade acrylic/plastic to provide glass like quality and clarity and greater durability Features a lightweight square shaped glass with Corelle Coordinates Happy Days pattern BPA free; use for cold beverages only; dishwasher safe Coordinates to match Corelle Coordinates dinnerware and accessories