A door knob bag is a bag typically made of plastic that is used to hold promotional information for various advertisers. You can use a door knob bag to hold large amounts of promotional material.
The door knob bag is similar to the door knob hanger, but the bag can hold multiple items. The door knob bag allows advertisers to combine their resources so they can include multiple advertisements in one trip to the "door knob".
|Jennifer Mathes, Ph.D.|