That price is for a pack of 25. I have two of the same brand I bought at the Boston Science museum last summer. I don't know if they still have them, but they

That price is for a pack of 25. I have two of the same brand I bought at the Boston Science museum last summer. I don't know if they still have them, but they were a couple bucks each at the time. I'm sure other museum type stores must carry them. I can also attest that they work great even for just observing the sun.