These Lindhaus vacuum bags and filters are specifically designed to fit their Dynamic Professional 380E/450E vacuum cleaners. With 8 vacuum cleaner bags and 2 filters, this pack contains everything you need to keep your vacuum cleaner running smoothly for a long time. The vacuum bags are large, meaning that you can do plenty of vacuuming in between changing bags. Similarly, the vacuum cleaner filters last a very long time, and can therefore go weeks in between changes.