The Duralex Lys stackable clear glass bowl measures 4.75" and has 1 1/4 cups capacity. Duralex glasses, tumblers, dinnerware, ramekins and mixing bowls are made in France of tempered glass that is 2.5 times stronger than ordinary glass. The tempered glass allows for maximum thermal and shock resistance. In instances where the Duralex glass breaks, it breaks into small chunks, lessening the possibility of cuts. Duralex withstands temperatures from 4 degrees to 212 degrees. Dishwasher and microwave safe. Stackable. Made in France.