# otherBodyInstanceID

> Instance ID of the second Rigidbody or the ArticualtionBody in the pair.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public int otherBodyInstanceID { get; }
```