The compact shape fits comfortably in the hand, the three-point base stands securely on any flat surface, and the built-in glass straw keeps red wine off your teeth, which is a good thing. Based on 17th-century German "schnapps pfeifen" -- small "pipes" used for sipping porto and liqueurs -- these clever glasses hold 5 oz. of wine. About 4" diameter, 4½" high. Sold as a pair, because why drink alone?