# size

> Describes the dimensions of the shape.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.AI](/engine/6000.3/script-reference/unityengine/ai.md)
* **Assembly:** UnityEngine.AIModule

```csharp
public Vector3 size { get; set; }
```

### Remarks

Used only for the primitive shapes: Sphere, Capsule, Box.

• Sphere: size is the dimensions of a box enclosing the sphere (i.e., x, y, and z are all equal to the diameter).

• Box: size is the dimensions of the box.

• Capsule: size is the dimensions of a box enclosing the capsule (i.e., x and z are equal to the diameter of the capsule and y is the height).