Lynch looked at the metal sphere on the stall.
This kind of metal sphere actually has a specific name — Alchemy Sphere. It is the final form of an Alchemy Creation, designed by Wizards specializing in alchemy disciplines. From the very beginning of its creation, precise mechanical structures enable the Alchemy Creation to alter its form, eventually condensing into a sphere of this size.
The purpose of this design is firstly for convenient storage, and secondly because 'circle' is the spiritual totem of alchemy. Alchemy emphasizes that all things in the universe form a circle, and the original shape of everything in the world is circular.
Therefore, the final product of small-scale Alchemy Creations can morph into a sphere via mechanical structures, while larger ones are incorporated into space magic models to be stored as spheres of the same size.
So, upon seeing an Alchemy Sphere, it essentially confirms that it's an Alchemy Creation.