# PrefabRoot

> This component contains the root entity of a prefab

## Definition

* **Type:** Struct
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule
* **Implements:** [IComponentData](/engine/7000.0/script-reference/unity/entities/icomponentdata.md), [IQueryTypeParameter](/engine/7000.0/script-reference/unity/entities/iquerytypeparameter.md)

```csharp
public struct PrefabRoot : IComponentData, IQueryTypeParameter
```

## Fields

| Value                                                                     | Description                  |
| ------------------------------------------------------------------------- | ---------------------------- |
| [Root](/engine/7000.0/script-reference/unity/entities/prefabroot/root.md) | The root entity of a prefab. |