Item:Hollow vortex of lightning suspended within a niello octahedron

hollow vortex of lightning suspended within a niello octahedron
Look:	Swirling eddies snake like charged rivers of living current upon the surface of the phenomenon. As small arcs discharge outward from the tempest, they encounter the surrounding niello and are quickly rebuked by some force, collapsing back into the condensed ball of energy from whence they came.
Weight:	Unknown
Metal:	Unknown
Appraised Cost:	Unknown
Properties:	This is a container. This item is a spacious container that can hold up to 25 items, in spite of how large or small the container may appear outwardly. This item is worn in a generic slot.
Dimensions:	? length x ? width x ? height
Capacity:	? length x ? width x ? height (? stones)
Sources:	Source is Hollow Eve Festival 428/Auction

The lightning vortex is a particularly spacious and sturdy container. Amazingly, though not always, the size and weight of the items being placed within somehow manage to fit, in spite of how large or small the lightning vortex may appear outwardly.
[The lightning vortex can carry a maximum of 25 items. It currently contains 0.]