Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: How does this work / what do you do with it?  Maybe something they should put in description...
Document: The head harness is a great workout tool, in one month I added 2 1/2 inches on my neck. If you put the work in it works and very sturdy
I purchased this with hopes of saving money while still getting a good neck harness. I should have just paid more for another one that won't kill your ears. I've tried to make this work but I've given up. The metal screws on the inside are right where they can pinch your ears as your head goes up and down. I can't believe they didn't cover the screws with something to prevent that but ....they didn't.
Be warned. *** UPDATE 6/2/13 ***I just got back from the gym. This neck harness busted while I was doing neck work with a 35lb plate. A bit embarrassing and very disappointing. This thing didn't even last two months. Neck work is important so I'll be looking for a higher quality neck harness. My advice? Save your money, skip this piece of junk and get something of higher quality. Good luck!
I was on the fence about this product, but decided that I would rather have a leather harness with metal joins rather than nylon with sewn joins. Big mistake. I took it with me to the gym, and just for a light warmup before my work sets I put on 25 pounds, sat down on a bench, and started going at it. The first set was pretty good, halfway through the second set the left leather strap that connects to the chain ripped right off.
Item is well made and exactly mirrors to what the description says it is, however the only issue I had was once I put it on to try it out it was slipping and moving on my head even after I tighten it. Solution: I used a beanie hat prior to putting the harness on which kept it stable and works fine. I believe once the harness has been broken in (due to it bein genuine leather)with prolong useage I will no longer need to use the beanie to stabilize.
It has a little tag on it that says "Made In Pakistan". Maybe thats why lol.
OK, if you are looking to strengthen your neck muscles, this is a tool you can use to make that happen. you can also buy a karate belt or something similar and just tie it tight around your head and get the same effect.
i bought this neck harness to get a thicker neck. This thing sure does put a burn in the back of my neck and is used also by some of my favorite athletes.
The length is adequate to put quite a few plates on it without issue.The attaching strap for fastening is velcro, but it's also very well made, and sewn/stiched into the leather, as are all the other components. The stitching is heavy and I don't anticipate any breaks or tears.
There is something suspicious about the one star reviews on this product. Be that as it may, those of us that have really bought the item, know it is excellent. The smell that some people complain about, is no worse than some of the other leather items i have bought over the years, and is certainly no reason to not buy it. I cant imagine the chain on this breaking with 50 or 60 lbs on it or even 150 or 160 lbs or more on it.
Answer: yes