# Null

> A "null" blob asset reference that can be used to test if a BlobAssetReference instance

## Definition

* **Type:** Property
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public static BlobAssetReference<T> Null { get; }
```