# isValid

> Whether the geometry describes a chain that can be used.

## Definition

* **Type:** Property
* **Namespace:** [Unity.U2D.Physics](/engine/6000.7/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public readonly bool isValid { get; }
```

### Remarks

There must be at least three vertices, every vertex must be finite, and each consecutive pair must be further apart than [\_minEdgeLength](/engine/6000.7/script-reference/unity/u2d/physics/physicsworld/minedgelength.md). The closing edge of a loop is not checked here because the geometry does not carry the loop intent; that edge is checked when the segments are created.