Libbey Gibraltar DuraTuff 9 oz Rocks Glass This large 9 oz rocks glass features an octagonal body and has been treated with Libbey's patented DuraTuff thermal afterprocess for "pressed" tumblers, which gives the top portion of the glass maximum resistance to thermal and mechanical shock. When you see the embossed DuraTuff name on your product, it means you're getting the longest service life in the foodservice industry. Capacity: 9 oz Height: 3-5/8" Top Diameter: 3-3/8" Bottom Diameter: 2-1/2" Maximum Diameter: 3-3/8" SCC#: 733187 DuraTuff Treated Use Traex rack TR-6A with this Gibraltar DuraTuff Rocks Glass. 402504