Hi Anna - thanks for posting this. A few months ago, someone told us about these, and there was a nation-wide run on HF blades. They actually ran out of them, and many of us were told our orders wouldn't be filled for up to 2 months! I finally received my order of 10 packages in October! The blades are great - so far, the only rotary cutter I've found that they don't fit is Martelli. They are VERY sharp and last a lot longer than other blades.