20 Pack Dust Bags Replacement for Vorwerk Kobold VK140 VK150 Vacuum Cleaner | Compatible with Kobold VK140 & VK150 Models | Premium Vacuum Cleaner Accessories Kit for Home Cleaning & Maintenance

The bags are basically the same as the ones made by Vorwerk. I would say that they are a fraction smaller in terms of the overall size and what they can hold. They do have a bit of the charcoal in them for odor control and the accessory flange is there and works fine. They snap securely into place and there was no dirt on the secondary filter, so they do not leak. The only issue might be for some the wait time. I wasn't aware they were a direct from China shipping arrangement. it took more than 2 weeks to get to the states. But they came eventually, and I will be buying them again given the quality and price.