This 7 oz Rocks Glass (15241) is presented to you by Libbey. This glass is perfect for any restaurant, bar, or caterer. This glass features Libbey’s exclusive DuraTuff treatment: a special thermal after-process for “pressed” tumblers and stemware that produces durable glassware with prolonged service life for the foodservice industry. For nearly 200 years, Libbey has been very proud of its position as North America’s leading designer, manufacturer and marketer of high-quality glass tableware for the foodservice industry. Today, it is widely recognized that Libbey is the leading producer of glass tableware for the foodservice industry in North America.