# Sandbox.Collider.Rigidbody

```csharp
Rigidbody Rigidbody { get; set; }
```

If this collider is part of a Rigidbody then this will return the component
that it's attached to. If this is null it's usually a good indication that this
collider is either static, world geometry, or a keyframe.

Declared in [Sandbox.Collider](/api/Sandbox.Collider).
Assembly: `Sandbox.Engine`.