Models come in a variety of different scales. The size of full body figures is commonly given in millimeters, although the stated size of the models is not always accurate due to scale-creep, where over time models have become larger whilst still being called the same scale. For example, Games Workshop models are still stated as being 28mm scale, however over years of production the size has crept up and they're now closer to 32mm scale. The size of busts is almost exclusively given as a ratio scale rather than in millimeters.