Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is this listing for one hotsnapz or more than one?
Document: I purchased a selection of HotSnapz directly from them at least 4 years ago. Some are small like these and others are quite a bit bigger.
These handwarmers are terrific! Not only do they work, but using it is like a little science project in action. The HotSnapZ hand warmers start out liquid with a little metal disc inside, floating around. You press on the handwarmer right on the metal disc to give the metal a little snap. The the liquid will look like it crystalizes from the inside, out. It really is a cool thing to watch.
I'm hoping this fades with time, but it's not at all a deal-breaker.The customer service of the HotSnapZ company is pretty good. I actually purchased mine direct from their website, and used my amazon.com account to pay. This resulted in my order being lost somewhere in translation, but when I brought this to the attention of the company they resolved everything on the spot!I would completely recommend this product and company to others.
I recently purchased several HotSnapZ products because I was looking for an environmentally friendly alternative to disposable hand warmers. These heat up instantly, and maintain their heat for about 30 minutes, then begin to cool. When first activated, the filling is moldable, which allows you to shape it to your body. As the heat is discharged they become more solid, and by the time its cool, its like a little brick. After you recharge them using boiling water, they really do work just as well the second time.
These function, but not for long. The did not last for more than 20 or so minutes. Good warmth, only reason they got more than one star.
These work great. Takes a little time to reset them, but they are lots less expensive than disposable, one-use warmers.
Great product for keeping hands warm inside mittens. One snap and they start to heat, last about 45 min. enough for a good walk in very cold. Reusable by boiling. A real money saver.
We bought these so we would have portable heat for baby bottles, and they work out pretty good.They won't instantly heat a bottle, but pop it, wrap it in a blanket with the bottle, and in a few minutes, nice and warm.Traveled through airport security with one in the liquids bag and were not hassled.
I have lower back pain and a heating pad is too big. One of these is perfect and the heat lasts about 30 minutes. But be careful when boiling to reuse. If you have even 1 crystal left, it will not work properly - needs to boil thoroughly. These are so good that I have recommended them to family.
I bought these as a gift for a friend of mine that hunts. They work great! The company accidentally sent me someone else's order first. They sent the correct order right away and let me keep the wrong one. Now I have some for myself! These are perfect for the cold northeast winter.
Answer: no