Portable hole

A portable hole is a magical item that can be used to access an extradimensional space, which can be used for storage.

Appearance
The portable hole looks like a silky black handkerchief.

Properties
The handkerchief-like item can be unfolded into a six- to ten-foot diameter circle and placed on a flat, solid surface, at which point it becomes the opening of a ten-foot-deep hole. It does not create tunnels through a solid surface as the hole is extraplanar, but it can be used for storage and creatures can crawl in and out of it. If it is folded up again, anything inside remains in the extradimensional space with about ten minutes of air.

A creature within the unfolded hole can see and hear outside it, but cannot itself be seen or heard.

History
Bells Hells found a portable hole at the Trove of Marwa and tested it out before purchasing it for 1500 gold. Fearne went inside and saw a few garments, as well as a broken chest. The party briefly folded the hole back up, and then unfolded it again, and Fearne seemed unaffected.