Duralex glass products are tempered. The mechanical and thermal resisting properties are considerably increased compared to other ordinary glassware products.
Five piece set includes: 3.5 inch (5.375-ounce), 4.4 inch (10-ounce), 5.5 inch (20-ounce), 6.8 inch (36-ounce), 7.9 inch (68-ounce).