# resetBits

> Gets an enumerable group of bits that are currently reset (0). The bits are returned in ascending bit-index order. This uses PhysicsMask.ResetBitIterator.

## Definition

* **Type:** Property
* **Namespace:** [Unity.U2D.Physics](/engine/6000.5/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public readonly PhysicsMask.ResetBitIterator resetBits { get; }
```