Door Knob Bags are a great way to leave circulars and other documents/advertising at apartments, homes and stores. LK's doorknob bags are made from High Density Polyethylene, which provides excellent protection at a great price. These items are packaged on a convenient header pack for fast filling. All bags have a 1 3/4" door knob hole. Excellent for distributing circulars and flyers to homes and apartments Rugged High Density material Convenient header pack for fast and easy filling