Libbey 15243 Gibraltar Double Rocks Glass is an excellent addition to any 'on the rocks' drinks. Constructed using DuraTuff technology its both thermal and mechanical shock resistant resulting in a longer life time. A paneled outer provides grip while a solid base stabilizes the base. A capacity of 12 ounces makes it the perfect size for beverages to blend and settle creating an accurate taste and smell. A clear clarity makes it easy to see whats inside peaking interest. Use this glass at bars, home or restaurants.