It works... Just do not expect them to last for a long time... These are not tempered!
351046
Not sure I would get this again... I only had it on my Vivoactive HR for less than a week and Its cracked already... I have been very careful and have not hit my watch against anything so I am not sure what has made it crack... at least its still functional and protecting my screen...

It was easy to install, though I used to install screen protectors on cellphones for many years, that said Tempered Glass is much easier than films...

Edit: I lowered my review from 3 stars to 2... I just can not recommend these as they break so fast and you have to replace them. I am going to look for a non-glass type as I can not see wasting more money of these if they will just break so easy... also tempered they are not
720084
They're good, yes, but they don't stand up well over time.  I bought these in late 2013, and they worked perfectly that winter.  I pulled them back out in December 2014, and now they hardly work at all... for the (currently listed $10.99) price, though, not too bad, but not a 4- or 5-star product.

Update, March 2017 - these don't really work at all anymore.  I had hoped they'd last longer I guess.
3605844
It works, but these aren't the best tools. Which isn't a surprise for the price, but some pieces do bend easily if you use too much force. These will work fine if you only need to adjust a few watches, however I wouldn't expect them to last in the long run.
47216
Its a great concept and they work well but are a little on the flimsy side.  As long as you are not looking for a long term solution these will work well for a while before you need to replace them.
3562622
Well,the positive is they hold a good charge and work ok. The negatives are the antennas keep flopping off even with the mildest of touches. They do not stay in place after they do.(We have 2 and happens to both).They do not communicate well with otehr rbands even on same channel. This is a problem for us b/c we have other `good` brands in our mix. For the price I didn`t expect much in fact we joked that these would be `disposable` after a job but I would expect at least a little durability. BOO. Giving to a friends kids and getting real units. Not worth the ivestment.
2038134
These do not seem to last very long.  They work for awhile, then they don't
2291087
Time will tell if they last longer than the old ones, but I can say that they work very well.  If you need them don't worry about the quality, these are just fine.
4975857
I thought these sounded weird but finally tried them. They do work! Just be careful, they aren't flimsy but the aren't indestructible either.
3505632
These work just fine, they look good, but at this low price, I don't expect them to last forever. The packaging came in an Asian language of that matters to you. I WOULD recommend for a cheap pair!
3585648
These work fine, but the problem is they only last a few months. Cheaply made I guess.
944944
These worked for the purpose we wanted them for.  I don't think they will last much longer than that.  Decent quality for the price point.
4022481
They do their job and haven't run into any issues with them. However, for some reason, I'm not expecting these cables to last very long. Maybe a year or a year and a half? I hope I'm proven wrong by them! I would absolutely recommend them.
1500363
Except for the price, they work fine. M-Disc does seem to imply that normal discs will only last you 3-4 years. Theirs...1000 years.
3368000
They work well, and so far I'm happy with them.  That said, they feel like they are made 'cheap.'  I'm worried they will break if anything happens to them, or if my 9 year old daughter gets a hold of them.  Also, the ear piece is not all too comfortable and does not sit and stay on my ear.  That said, for what I paid, so long as they last, I'll be happy.
3536891
Works well for awhile, but it's not something you can count on long term. Mine lasted roughly 7 months before "biting the dust." So, keep that in mind when pricing it against it against their competitors,.
2597065
They do the trick. They are not as sturdy as name brands. but like i said, they do the trick
3512515
They are ok- not the best quality for the money. Had two break while converting an ATX into a bench power supply. Does not seem to be many options for these...so you use what you can find. Probe to screw terminal is thin pot metal so you can not tighten much. Would look for better quality.