For busts, the most common scales are 1:12 scale and 1:10 scale. These provide enough size to allow for sufficient detail, without being so large that the cast shadow of the sculpt onto itself interferes with the painting, as would happen with larger scales. As there is less prevalence of scale-creep in busts, and the larger size would make a heroic scale obvious and unnatural looking, many bust manufacturers have begun to include the upper torso and arms, as well as any held objects such as weapons, or even the whole torso from the waist up, as opposed to a more traditional bust of just the shoulders up. This is to increase the size of the models for additional visual interest and the physical surface area for additional details, and is most common with companies that produce busts specifically as display models or as competition pieces.