Be very careful.
This item was presented to John Beaumont by Coyote as a gift. When Coyote set the bag on the table before the Doc, a thunderclap rolled in the air and everyone in the room turned to stare at them. Essentially, it is a bag that can be used to extract items the wielder concentrates on. However, using it runs the risk of something happening to the user. Either it misinterprets the intended item, or just gives the user something he’ll regret pulling out. Luckily, no ill pulls have befallen John and he uses it sparringly.