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# scaleRange

Specifies the range over which the scale value can vary. Animatable.

```
var scaleRange: CGFloat { get set }
```

## Discussion

The range specifies the mean amount that the [`scale`](/documentation/QuartzCore/CAEmitterCell/scale) value can vary for the cell over its lifetime.

The default value of this property is `0.0`.

## See Also

[`scaleSpeed`](/documentation/QuartzCore/CAEmitterCell/scaleSpeed)

The speed at which the scale changes over the lifetime of the cell. Animatable.


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