This item was undoubtedly a treasure prepared for Wang Shouzhe.
It was a pendant-type treasure that needed to be unfolded for use. Once unfolded, a subspace vortex channel would appear, allowing its owner and those designated by the owner to enter and exit.
In addition, it also came with a high-level miniature hidden formation method, which the owner could manipulate at will to activate its concealed state.
However, this item had many limitations; storage equipment like storage rings could be brought in, but the storage ring could not be opened within the carry-on cave mansion.
After all, the overlap of dimensional spaces was already dangerous. In one dimensional space, opening another dimensional storage space was very likely to cause a dimensional space shock storm due to the mutual influence of the space energy.
