The filters are too big to fit in a Sharkspin vacuum. Very annoying. I photographed my original filter next to the new one. As you can see the black one is bigger, it doesn't fit in the vacuum cleaner. Update: I just found out that there are different models of this vacuum cleaner. I have an NV500 so of course they didn't fit. Please check the part number of your vacuum cleaner before ordering. These filters looked like they would work fine.