> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/3d-modeling-and-design/t4r/list-of-mep-features/duct-description.md).
# Duct Description
**Icon:** 
**Location:** ribbon Be.Smart T4R MEP, panel Description
**Packages:** Be.Smart T4R Silver
### Overview
The Duct Description function adds duct annotation labels at all connector points.
In the settings, you can select the requested annotation element from the list - for circular and rectangular ducts, or you can apply the labels to all elements in the view or just to the selected ones.
You can also select the label insertion style - left, right, both ends, etc.
### Tutorial
{% file src="/files/bzGNvgX25uQqBFBN0COC" %}
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# Agent Instructions
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## Querying This Documentation
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```
GET https://docs.besmart.software/3d-modeling-and-design/t4r/list-of-mep-features/duct-description.md?ask=&goal=
```
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