Come and Check Our Branding Solutions.The whiskey glass is artificially blown from the highest quality ultra-clear lead-free crystal. The exterior adopts ion plating process, under the light, the whiskey glasses will reflect a unique luster, and the color will not drop. It has good cold and heat resistance, you can use it safely and elegantly. The rocks glasses can be cleaned in the dishwasher. Pls check inventory and detailed info before placing your orders.