8Oz). the Aran Rocks Tumbler is of Short & Simple Design, Ideal for Whiskey & a Variety of Spirits & Ice. the Aran Collection of Glassware has Been Made with Fully Tempered Glass for a Robust Finish That Will Break into Blunt Fragments If Shattered, Ideal Where Glass is Paramount. Fully Tempered Glasses Are Resistant to Mechanical Shocks, Extending the Life of the Product Compared to Non-Tempered Glass Products. They Are Heat Resistant & Can Withstand Changing in Temperature From Hot to Cold. Dishwasher Safe - Strong & Durable, Shock Tested & Capable of Industrial Dishwasher Cycles, While Maintaining Clarity. Minimum Quantity: 48