"toolbox of" is correct and usable in written English.
You can use it to refer to a toolbox that contains a variety of items. For example, "I have a toolbox of helpful gadgets that I use for DIY repairs around the house."
Joost, however, uses a toolbox of widgets for things like chat rooms and bulletin boards.
Using Ga Toolbox of Matlab 4.4.
First, there's the classic toolbox of economics, operations, and finance.
In our case, the deep fryer is a toolbox of statistical techniques.
"In three months," the show notes, "F.D.R. created the basic toolbox of modern American liberalism".
The multiplying toolbox of development statisticians reveals an increasingly wide range of indicators.
Observational studies are part of the toolbox of study designs.
Rodriguez, E. A. The growing and glowing toolbox of fluorescent and photoactive proteins.
Designers have created their own toolbox of solutions for other Dutch cities to use.
These should be placed on a blacklist and subjected to a "toolbox of sanctions".
She's ready to excite without reaching into the typical toolbox of vocal provocations.
