Avatar shape is a type of bodypart. The "Shape" can be considered as the "frame" of the avatar. To alter an avatar's shape, users right-click on the avatar itself, and select 'Edit Appearance' from the pie menu. Shape determines arm length, body fat percentages, size of nose, etc. Shape is often mistaken for Skin, which can be considered the cosmetic "cover" of a shape, much as a plastic film can cover an orange. Only one shape and one skin may be worn by an avatar at any one time.