HotHands Body & Hand Super Warmers - Long Lasting Safe Natural Odorless Air Activated Warmers - Up to 18 Hours of Heat - 40 Individual Warmers

Have now used a whole box. See the price has risen by about £10. Only last about 12 hours. Small version lasts the same. Says "open here" on side of individual packs but (unlike on the small ones) there is no nick to easily tear open and scissors are needed to (carefully) open the packs.

I absolutely love these. I use them for a lot of things. Not just for placing them in my pockets to keep my hands warm. This product is versatile! The major thing that I use them for is to keep my neonatal puppies warm when I need to transport them. Throw a small blanket over the hothands then the puppies and finally another blanket on top of the puppies. My husband uses them during hunting season and raves about how warm they keep his hands and that they last the full day for him. Once you are done using them, and if there is still heat left in them place them in a sandwich bag/quart bag sealing it while getting the air out you can extend the life of them and use them at a later date. I highly recommend this product especially if you are a breeder!

De muy buena calidad, permancen caliendes hasta dos días, quede sorprendida, las utilice para un viaje Mexico-Europa y todo bien

lasts a long time and performs well. tested in minus 30 deg celsius.

First time using these and they work great. I was really impressed with the size and how long they stay warm.