Pack of 6 Genuine Kirby white fabric Micron Magic bags which reduce common household dirt, dust and other particles. The electrostatically charged material traps micron size particles, making them especially beneficial for allergy and asthma sufferers. These are designed for use in both the F-style and Twist-style models so they fit almost all Kirby models in use today. The cardboard collar has an approximately 2.5" round hole with indentations for the Twist-style and a fold back top for the F-style models.   For similar products see our list of Kirby Vacuum Supplies. Show Less