Columns, each within their own rows

12 columns
11 Columns
10 Columns
9 Columns
8 Columns
7 Columns
6 Columns
5 Columns
4 Columns
3 Columns
2 Columns
1 Columns

Columns side by side, each within their own row

6 Columns
6 Columns
4 Columns
8 Columns
3 Columns
5 Columns
4 Columns

Also has extra abilities, like text alignment and centering / pushing columns

6 Columns, Column Centered, Text Centered
7 columns, "floated" right

You can also give it your own flex basis value.

Flex Basis 650
Flex Basis 300