# Checkbox
The checkbox labeling tool allows you to ask labelers close-ended questions with multiple right answers.
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The Checkbox tool is supported across the Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, and Markdown labeling editors.
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## The Checkbox Labeling Tool in Ango Hub
### How to add a Checkbox tool to your project
From the project’s *Settings* tab, enter the *Label Set* section.
Click on *Add Category*. From the list that appears, click on *Checkbox*.
A new row will appear named *Checkbox*. Click on it to expand it.
Give your checkbox tool a title and description. From the *Options* text box, you can enter the answers. Press *Enter* after entering each one.
Enable the *Required* toggle if you want to force labelers to answer it. When the toggle is disabled, labelers will be able to save and move to the next asset without answering this question.
If you would like to ask labelers further questions, for example, if you want to show a Text tool when labelers select a particular answer, click on *Add Classification* and add a further question. [More on nested questions here](https://docs.imerit.net/labeling/labeling-tools/tools/nested-classifications).
### Differences between Checkbox and Multi-Select Dropdown
The tool is functionally identical to the Checkbox tool, with the main difference being visual.
The major benefit of the checkbox tool over the dropdown tool is that it can be answered by a labeler with a fewer amount of clicks, instead of the having to first open the dropdown to answer. The downside of checkbox is that it cannot easily display large numbers of items.
When the number of possible answers is limited, we recommend choosing the checkbox tool. For questions with a significant amount of more answers, the dropdown tool is preferable.
### Differences between Radio and Checkbox tools
In [radio](https://docs.imerit.net/labeling/labeling-tools/classification-tools/radio), labelers can only select one answer. In checkboxes, labelers can select more than one.