What result does the Shell command produce in a 3D object?

The Shell command in Autodesk Inventor is used to modify 3D solid objects by creating a hollow structure within them. It effectively generates an outer skin of a shape by removing material from the inside while maintaining a specified wall thickness. This allows designers to create lightweight parts that still retain strength and are more material-efficient.

In this context, the Shell command provides a way to manage the internal and external profiles of an object, allowing for the creation of parts that may be used in various applications, such as casings or containers where the outer shape is critical while reducing weight and material consumption. Other options describe different functions that are not related to the primary ability of the Shell command.