# Create an Annotation Attribute
Annotation attributes (also referred to as "subclasses") can be added to your annotations using class specific attributes. These attributes are included in your dataset exports for object detection and segmentation projects.
{% hint style="info" %}
This feature is exclusively available for Enterprise customers. [See our pricing page](https://roboflow.com/pricing) to learn more about how to access this feature.
{% endhint %}
## Create an Attribute
To create an Annotation Attribute, first click "Classes & Tags" in your Project sidebar:
On the Classes & Tags page you can see all of your dataset classes. You can also add Annotation Attributes to a class that you can use on images in your dataset.
To add an Annotation Attribute, click the plus icon in the "Attributes" column of the class to which you want to add the attribute:
A window will appear in which you can set a name for the Annotation Attribute:
Click "Save" to save the Annotation Attribute.
Your Attribute will then show up next to the corresponding class:
### Add an Attribute to an Annotation
After creating an annotation you can add attributes to your annotation in the Class Selector.
## Export Annotations with Attributes
To export annotations with attributes from Roboflow, refer to our [Export Data](https://docs.roboflow.com/datasets/dataset-versions/exporting-data) guide.
{% hint style="warning" %}
Annotation attribute information is only included in [COCO and COCO Segmentation formats](https://roboflow.com/formats).
{% endhint %}
