# isTrigger

> Enable/Disable being a trigger shape. A trigger shape generates overlap events but never generates a collision response. Triggers do not collide with other triggers and do not have continuous collision, instead, use a ray or shape cast for those scenarios. Triggers still contribute to the body mass if they have non-zero density. The default is false.

## Definition

* **Type:** Property
* **Namespace:** [Unity.U2D.Physics](/engine/6000.6/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public bool isTrigger { readonly get; set; }
```