These 12 oz Ribware Beverage Glasses are model 7637U by Anchor Hocking. As their name suggests, they have a ribbed design that increases the attractiveness of the glass as well as the ease of gripping the glass. They also have a tempered rim and a somewhat straight-sided design. All of this makes these glasses some of the most durable in the industry, as well as some of the most versatile. If you are looking for an all-purpose glass that will reduce the amount you spend on replacing broken glasses, look no further.