Hand Warmers - HotSnapZ Reusable Round & Pocket Warmers for Instant Heat

These work great and are so easy to recharge for the next use. And realy get quit hot.

I'm rating these 5 stars because I'm definitely a fan. But it's not all good news to report, so I'll give you the good and the bad. First the good. Because these are re-usable, these things do save you a lot of money. Also, they get much hotter than most hand warmers, and they're really fun to use, and to show off to people. Seriously. FUN! However, they don't last very long before cooling off. I generally only get 10 minutes of strong heat, and then another 15 to 20 minutes of it slowing going from warm to cold. There are things you can do to make the heat last a little longer, like kneading them repeatedly. Also, if you keep them in your pocket, they last longer than if they're out in the cold air (logical, right). And someone else suggests you heat them up before activating them, which slows the 'freezing' (heating) process (I haven't tried this yet, but it sounds like it makes sense). Another thing is, it can be a bit of a pain having to take the time to boil these every day after using them, and personally, I've been lazy about it, and often let them sit for several days before boiling them. This is something you need to avoid doing. You need to boil them down right away. Don't let them sit in their hardened state. If they're allowed to sit, for some reason, when you do try to boil them down later you'll have a much harder time, and sometimes not be able to at all. I don't know why this is, but it just is. I've ruined a lot of them that way. So, learn from my mistake. Also, regarding their pretty color and appearance - don't expect it to last. The color fades quick, and they start to look really ugly. But it's not about looks, right?

UPDATE AND RATING CHANGE! After using these several times outside in cold weather (about 20°) I've changed my opinion somewhat. They still only last about 20 min, but I wait till my fingers are FREEZING, then activate one of these babies. 20 minutes of really warm, is a total godsend at that point. I have these from 4 different companies/brands and they all last about the same 20 minutes. It would be really nice if they worked as long as advertised. Original review:I am quite disappointed since I received these. My hands and feed get really cold, especially when hunting, or at the kids sports/games, so I thought this would be a better option than my two current methods...the disposable ones and the metal one that you fill, like a zippo lighter. So, I tried all 8 of these, the day I got them. The small ones lasted about 15 minutes at a good temp, and were totally cool before 30 min. Most of the heat was gone at 20-25 min. The bigger ones lasted a bit longer but totally cool by 35-40 min. I tested them out inside the house (at 75-80 degrees), so how long are they going to last when I'm outside in 20-30 degree weather? I know, I know, keep them in your gloves or in a pocket and knead them...I tried that. I'm not feeling very confident in them at this moment. So, as it stands right now, if I go to a 2-3 hour game, and want to keep my fingers from falling off (or at least feeling like they're going to) I need a minimum of 3-4 per hand? That's a lot of extra weight and bulk to carry around!! I had a few of these of a different brand, and they lasted a lot longer, but I boiled the water out of the pan, and ruined them =( My bad!! On a plus though....the plastic feels quite thick and does not feel cheap and flimsy, like they're going to break easily. They feel well made, I'm just disappointed in how long they stay warm.

Why did you pick this product vs others?: I love these wonderful heating packs. First, they always work – unlike one's I purchased from another brand. I use the smaller ones on the plane because I get bad ear aches so it is crucial that they be reliable; they are. I keep the bigger ones in my bedside cabinet for when I get tummy aches. They are easy to activate and heat up right away. I massage them a little to get them flat, wrap them in a light cloth because they do get hot, and use them in the right spot. Second, it is easy to boil them gently to reset them, and then they cool off and are ready for next time. These packs are great! Thank you.

These sound like the greatest invention ever—and don’t get me wrong, they’re fun as hell to play with. Click the little coin inside, and you get an instant chemical reaction with heat. But do they actually keep you warm? Not for long. The listing promises up to 40 minutes, but in my experience, you get about 15 minutes of real warmth before the temperature starts dropping faster than my hopes for this product. The good: Awesome for showing kids how exothermic crystallization works. It’s like a magic trick. Super easy to recharge—just boil them for a few minutes and they’re back to “new.” Tough enough for daily handling. Never worried about them popping or leaking. Come in different sizes, but don’t expect more heat—just maybe a little more time from the bigger ones. The not-so-good: Not very hot. Never got to the “ahhh, that’s better” level of hand warmth, more like “well, that’s something.” 15–20 minutes of useful heat, tops. Don’t count on these for real outdoor survival or long winter walks. Fun as a fidget, and maybe worth tossing in a backpack as an emergency backup, but I ended up switching to an electronic hand warmer for real warmth. Bottom line: Keep them as a science demo or a novelty gift. If you’re hoping for serious heat, look elsewhere. Good stuff, not great stuff—but guaranteed to make you the star of any classroom lesson on phase changes.

So convenient and love that they are reusable. Hot heat lasts about 30 minutes and stays warm for another 30 minutes. Long enough to warm those fingers! Also we use them as a "hot rock" replacement prior to massage! Great product and will definitely buy more for gifts!

Schnelle Lieferung + super Handwärmer, Vielen Dank.

Don't bother, they leaked the first time I re activated them. It leaked everywhere and I let the company know months ago and still haven't had a reply.

They were just as expected - worked great. Easy to activate and reset.

I wish i had read the negative reviews before buying. These only heat for about 10 minutes even when starting indoors. Large or small pack makes no difference. I’m surprised they advertise this as lasting 30 min to 2 hours. Usb Rechargeable hand warmers like Ocoopa are much better