# objectValueId

> The EntityId of a Unity object. This is the object referred to with PhysicsUserData.objectValue

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.LowLevelPhysics2D](/engine/6000.3/script-reference/unityengine/lowlevelphysics2d.md)
* **Assembly:** UnityEngine.Physics2DModule

```csharp
public readonly EntityId objectValueId { get; }
```