These are Genuine Kirby Style 1 Upright Vacuum Cleaner Bags.
Fits Kirby Tradition Uprights. Also fits Models 1CB, 3CB, and 505 thru 562 Upright models
Use ONLY genuine Kirby filter bags to get maximum performance and maintain your vacuums warranty! All Kirby Home Care Systems, when used with GENUINE Kirby Filter Bags, meet the Carpet & Rug Institute (CRI) certification for indoor air quality.
Comes 3 per pack.