This Libbey 15232 Gibraltar old fashioned rocks glass is great for any cocktail or drink on the rocks. The paneled sides of the glass are easy to hold on to and it is less likely to slip from your hands. The thick bottom of the glass adds stability, and will rest perfect on any tray with a grip or cork liner. This glass has DuraTuff technology that gives the glass extra durability, in that it will not shatter into pieces if dropped. It would just crack the glass, if the glass breaks it breaks into large pieces making it for easy clean up.