Sigma Jars

Sigma Jars are jars of varying sizes, invented by the Ancient Sigmarians. Their main purpose is to contain Anomalies and Singularities safely, but you could also use them as normal jars if you wish...

They are nearly indestructible, made with a recipe almost as strong as Green Powder. Currently, the recipe for Sigma Jars is a closely guarded secret, known only to Green, a select few Ancient Sigmarians and members of the U.T.C.