Bread and rolls are produced in all shapes and sizes, which are determined by a number of factors including

1. The type of flour used for making the bread
2. Whether or not the bread is leavened
3. How the bread is used
4. Local or regional tradition
5. How the dough is cooked, such as baked, steamed, deep-fat fried, etc.
6. The symbolic significance of the bread shape for a particular holiday or festive occasion