Z-Stem Martini Glasses will thrill everyone who gets to drink out of them. They are a fun stem that swerves out to the side. It is a fun novelty glass for Martinis and other contemporary drinks . While the martini conjures up a certain panache and sophistication, there's no reason sipping one should be a serious affair. Libbey adds a touch of fun to the cocktail hour with this set of four Swerve martini glasses. The stem on each not only curves stylishly but attaches unexpectedly to the side, not the bottom, of the flared bowl. Each 6-3/8-by-4-3/4-inch glass holds more than six ounces when filled to the rim, but four ounces comfortably without spilling.