The Empire also had Space Pouches and Item-Storing Rings, but their durability did not degrade too severely, so they were not mainstream Storage Equipment.
Such equipment was either inherited from ancient times or custom-made after someone happened to acquire some rare material.
Yi He first guided Qu Jianlei in crafting several smaller Item-Storing Rings. Some had passable durability, while others were far less sturdy.
Generally speaking, Item-Storing Rings made from Space Stone powder were not very good.
Their manufacturing techniques were relatively advanced, making them somewhat better than Item-Storing Talismans, but their durability only amounted to around a hundred uses.
Over the course of these experiments, the finer Space Stone powder and smaller fragments were all used up.
After completing the relevant experiments, Qu Jianlei still made two large Item-Storing Rings.
One could hold a Division Level Ship, while the other could hold two. Both had durability of roughly two or three hundred uses.
Even in the Cultivation World, these two Item-Storing Rings would be considered large.
Yi He remarked, "A Division Level Ship... something this large is truly rare in the Cultivation World. Cultivators emphasize returning great power to oneself."
In other words, it was not that the Cultivation World could not make Item-Storing Rings this large; there was simply usually no need to.
Of course, an Item-Storing Ring this large also required an astonishing amount of materials.
At the very least, the smaller Space Stones had basically all been used up. The smallest remaining Space Stones were fist-sized.
Qu Jianlei felt that it was necessary to make a trip to the Alliance.
With the remaining Space Stones, let alone attempting to forge the Black Colt Tower, there was not even quite enough to make large Item-Storing Rings with higher durability.
So, after returning and resting for five months,