how long do they last?
372241
Variable. Seems to be about 6 months of good effectiveness. You can rejuvenate them for extra time by putting them outside in the sun for a day or two.
1776586
So far they have lasted about 6 months. As to buying locally, I haven't found any store that sells them.
372036
I have used these for about 4 years. They have been lasting close to 1.5 years. I have had no problems.
957392
I suppose It depends on the amount of usage. But I have had mine since November 13. Used moderately but not heavily. A couple times a week for 30 min to 1 hour each time. I like them. If I could afford the $40 a piece ones I would get those over these any day. But for the money they do what I need them to so and so far no sign of wear.
1110824
Depends if you purchased New or Old or Refurbished or so. They do last 3-5 years depending on how well they are looked after.
333015
They last a long time, I have some from a year ago. Of course one or two of them may not last, but over all they are good.
723171
They are designed to last approximately 30-45 days. However, I have seen customers that have gotten much more time out of them. An average usage time would be about 2 months.
967639
As long as they are not open they last awhile. Even if opened, if closed tight will last.
2228599
They last quite a long time. I have had mine for over a year now. But it also depends upon how frequently and for how long of a duration you use it for. I only use mine on rainy / grey days and for 2-3 hours at a time.
577553
No certain amount of time. I have used these last one several months....I just use them until I think they need changing or they have started trying to come off the belt. Just a use your on judgement...
1292882
I've only had mine for about 2 months, so I can't speak for how long they last. Fortunately, no issues thus far with them.
1036655
Exactly 167 years, 5 months, 28 days, 4 hours, 37 minutes.I'm kidding. I have no idea, but it would seem that with proper care they should last a few years. :)
360310
I've had mine about a year, use them every day for at least 3 or 4 hours. Still perfect.
312137
I really don't know. I had bought it for my mother in law. From what she has told me, they last a good while.
2046117
They seem to last a long time, I bought the 4-pack two months ago and I'm still using the first one. I really don't use them a lot, tho, only when I open up my pc case.
1066796
They last a long time. I can't tell you how long I had the first one but I know it was at least five or more years.
1510909
They last ok.. Like 4-5 hours.. I mean they were literally $1 each-) so the quality matches the price-)