Toolbox is a special that doubles the amount of collected raw materials. It cannot be bought, sold nor donated. Toolbox can be acquired by collecting toolbox parts from raw materials companies.
In order to create a Toolbox, you need 5 different parts.
You get these parts by working in raw material companies.
You can use toolboxes to double the amount of raw materials collected from your raw material companies. To activate a toolbox you must assemble it in your storage. After the assembling is done you will produce twice as much in next five times you work in raw material companies.