This item is typically fashioned of brass or bronze, with a lead stopper bearing special seals. It not uncommonly has a thin stream of smoke issuing from it. 

There is a 10% chance that the efreeti will be insane and attack immediately upon being released. There is also a 10% chance that the efreeti of the bottle will only grant 3 wishes. 

The other 80% of the time, however, the inhabitant of the bottle will serve normally (see Efreeti). 

When opened, the efreeti issues from the bottle in but 1 segment.