# positionSpring

> Strength of a rubber-band pull toward the defined direction. Only used if mode includes Position.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public float positionSpring { get; set; }
```

### Examples

```csharp
using UnityEngine;

public class Example : MonoBehaviour
{
    // Create a JointDrive, configure it and assign the JointDrive to
    // the zDrive element of a configurable joint.

    void Start()
    {
        ConfigurableJoint joint = gameObject.AddComponent<ConfigurableJoint>();
        joint.targetPosition = new Vector3(0, 0, -10);

        JointDrive drive = new JointDrive();
        drive.mode = JointDriveMode.Position;
        drive.positionSpring = 20;

        joint.zDrive = drive;
    }
}
```