The Century Collection is made using premium borosilicate glass that is most commonly associated with laboratory glassware and high end kitchenware. It provides a delicate appearance and superior thermal shock durability.. Made in China. Set of 2. A modern classic destined to become your new go-to drinking glass.. 16 oz. Hand wash with warm water and mild soap.. 6.5 H x 3 D. YIER-WA18. G16-AMB.