Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: how many pairs?
Document: I've ordered many of these this winter to put in an outdoor kitty box. They stay warm for a very long period of time. Would highly recommend.
I bought the full package for my trip to Alaska in Feb. Although 40 count was a bit too many, I shared it with three friends. It's a great product that kept us warm with under -20 Celsius degree for HOURS! !
I spend many hours at a time outdoors in winter and need warmers to counter the Raynauds that freezes my hands. These ones last longer than any other I've tried. You can wrap them up in plastic wrap several times between uses to make them last. I stocked up on enough to last me through the winter.
I used the hand warmers while shoveling during one of our many snowstorms with very cold winds. Worked well and to my surprise, several hours later while in my home, I noticed it was still warm. Good thing to have when out in the cold. Probably more helpful if worn with mittens to help keep the fingers more comfortable. Not as great with gloves for the fingers.
I ordered these originally for a trip overseas this summer, as a 'just in case' source of heat. These packets are amazing! they last forever [in my experience, at least 18 hours], have a comfortable degree of heat, but not lukewarm in the least. Great price for so many...I"m thinking I'm going to use them a lot during the fall and winter!Highly recommended!
The box arrived and 18 of 40 of the hot hands were hard as a brick and couldn't not be used as they would not get hot. The remainders were soft and heated up well. Some of them even lasted almost a day as they were still hot the next evening when we took them out of our pockets. I think these are a great product if you get all of them in working order.UPDATE: Amazon refunded the portion of the cost based on how many were faulty.
Any warmer would cause a possible mild first degree burn.Customer service for this product is outstanding. In one box, several were rock hard inside the wrapper, and I tried breaking them up, shaking, wetting them,  to no avail. When I called the company, they said that is what happens when the package is exposed and stacked, and asked how many were like that (there were 6-7, I tried "fixing" 2 or so, but have four still as they were.)
with poor circulation in my hands and feet I am still able to hunt  in cold temperatures at age 85. Thanks hothands! They work and last a very long time.
which I guess is NOT the norm, but nevertheless pretty neat.
well, it heats. However, there is a big problem. There is NO sticker on the back which means you can not paste it on your clothes. You have to by a bag to hold it. too silly
Answer: no