These are the animation cels actually used in the production of a cartoon. They can have either Xerographed or hand-inked outlines, and are hand-painted at the studio. These cels are one-of-a-kind pieces of art, and their rarity makes them highly sought after by collectors. Because these cels were created to make an actual cartoon, each cel is a component part of a larger movement. Different cels from the same scene may be more or less desirable depending on a variety of factors: size, profile and expression of the character, any damage to inking or paint, and overall visual appeal.
Some unique cels have fetched record prices at art auctions. For example, a large (pan) cel depicting numerous characters from the finale of Who Framed Roger Rabbit sold for $50,600 at Sotheby's in 1989, including its original background.