Hand Warmers - HotSnapZ Reusable Round & Heart Warmers

A perfect balance of geeky, functional, adorable, and eco friendly.Geeky: Supercooled sodium acetate. Explain the thermodynamics of what is going on to your girlfriend and she mgiht question why she is dating you at all. But if she's a geek or can appreciate one, this is an epic gift. The fact that it is actually warming up when its "freezing" is probably cool enough of an explaination for your average consumer.Functional: Hand warmers are a great gift.Adorable: Add in a tacky line with a card to score bonus points. Anything about a "warm heart" is bound to be a home run. Try to avoid referencing "frozen hearts" unless you want to take the chemistry into an overcomplicated metaphor that will likely miss its mark and end up with you in the doghouse.Eco Friendly: Pretty much infinitely reusable. Great for that tree-hugging friend of yours.---------------------Pro Tip: Buy Two Sets!These take some time to "recharge" in boiling water, so this is a case where MORE IS BETTER. The minimum number I would buy is 6 or 8, and idealy you would want 15-20 of these warmers. Pile up the used ones and then reheat them all at once to be more efficient.

They are not very warm. I've used these for years. New batches stay warm maybe 30 minutes when it used to be over two hours. The temp is also lower. I will be trying a new brand as these are reduced on quality.

I recently was diagnosed as having Raynaud's Phenomenon (although, it's been a long time coming, my hands in a comfortable temperature room often feel like ice to others and my nails would take on a purplish hue) and I also live in Fairbanks, AK where, as you would imagine, it can get quite cold. I ordered these because of the other reviews and I figured it would help save a few bucks on buying the big packages of disposable hand warmers at the sports store. They work great, although I use them more for in the office if I get a little cold or when I've just come in from the cold. They are a bit large, so I don't think I would be able to fit them into my gloves or anything when I have to work outside. Also, it was pretty accurate that they last about 30 minutes. I can get about 45 minutes out of them. I also really enjoy the whole reaction process because it just looks neat. They are really easy to reactivate and an instruction card comes with the order. I bought a silicon steamer to put in a pot so they don't touch the bottom and because I felt better knowing the warmers weren't resting on something metal. I think I may order some more and possibly some of the other sizes as I've also put these on my shoulders when I've had a tension headache and they've helped a lot, but I believe the company makes some other shaped warmers that would work better. I would recommend these to anyone who gets cold easily, and when I move back to the south I think they'll be great in the fall at football games when it's not really cold enough for gloves. I love the heart shapes because they're so fun.

My husband works in football so I'm always at the games. I love these things, I put all 8 in my bag and pull one out every so often. Wish they lasted longer. But they warm up my hands. Also wish they fit in my shoes :) Did hear someone recommend boiling them before you go out, so they are warm, and then snapping them when they get cold (so two you get to use them twice). I may have to try that.

I have used this type of hand warmers in the past, and I loved them. I've been looking for replacements for several years, but they were always too expensive. Finally, I found these at a great price, and bought them, hoping they were not cheaply made knockoffs. I was happy to find that the quality is good, and they work well. I am very happy with this purchase, and would recommend them to anyone who wants a good quality hand warmer.In the past, I have also used the lighter fluid type hand warmers, but they were too much trouble, and I didn't like the smell, especially in enclosed spaces. They were also hard to light, and it was difficult to regulate the heat output. These reusable hand warmers are easy to use, and only have to be boiled to be recharged. Very convenient. I should mention that due to the nature of these items, they put off quite a bit of heat, but only for about 45 minutes to an hour. After that, they stay slightly warm for about another 30 minutes. If you carry spares, you can just pop another one in your pocket, and stay warm as long as necessary. It was nice that this order is for 8 hand warmers, so it's easy to have spares to last all day.I often travel and camp during the winter in an unheated, uninsulated fiberglass travel trailer. At night, I put one of these hand warmers at the bottom of my sleeping bag to keep my feet warm. When one quits giving off heat, I just pop another one, keeping my feet warm all night.

When I first saw this product used during a blood draw, I was intrigued right away. Watching the small packet heat up almost instantaneously was mesmerizing. I then searched for the product and found it here and, after I ordered a few for my own personal use, I have never been happier with such an amazing product. It's usefulness when I need to calm a raging headache or to warm my freezing hands when stuck some place freezing-cold, has been a life-saver. It is also very easy to reuse so long as you have a microwave or stove to boil water nearby. Otherwise, you may need to stock up so you have a few extra around at home or while out and about. The only complicated part is I have found that heating these up can vary from place to place. I have found that traveling to higher elevations changes the time needed in the microwave. Thuds, there is some variance on how long it takes to reactivate for future use. Just proceed cautiously and don't assume that it will always take the same amount of time every time you re-heat for future re-use.

I use these for snowboarding (I’m not a fan of the ones you use and throw out after one use) I have a similar product and I figured I would purchase some more. I didn’t expect these to be so large. Glad I can still fit them into my glove but they just manage to squeeze in. This product would not work for small kid hands in gloves.Overall I’m still glad I purchased this product.