# Set a Feature Label Scale

When Scaled is enabled, you label each feature with the feature's size. At runtime, you specify the range of feature sizes across which to search. With Scaled enabled, you set the Feature Size to indicate the feature size that is at 100% scale. The runtime scale range is the range of feature sizes returned relative to the base feature size.

You may also select whether to enable Uniform or Non-Uniform scale. When Uniform scale is enabled, all of your feature labels will be the same shape.

If Non-uniform scale (also referred to as aspect-ratio) is enabled, then you set the feature size to indicate the 100% scale of X- and Y- independently, and label each feature instance with a unique aspect ratio. This can be useful when training a single tool to find a range of differently-shaped parts.

You can graphically set the label feature size by holding the Ctrl key as you move the graphic handle. Also ensure that the Feature Size parameter setting matches your label's dimensions. This can either be set graphically, or you can manually set it based on your label (hover over the label to get the X and Y dimensions of the label).