# collider

> The incoming Collider2D involved in the collision with the ContactPoint2D.otherCollider.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.Physics2DModule

```csharp
public Collider2D collider { get; }
```

### Remarks

This collider is attached to the [Collision2D.rigidbody](/engine/6000.6/script-reference/unityengine/collision2d/rigidbody.md).

Additional Resources: [Collider2D](/engine/6000.6/script-reference/unityengine/collider2d.md) and [Rigidbody2D](/engine/6000.6/script-reference/unityengine/rigidbody2d.md).