Hot Hand Warmers - 50 Count - 10 Hours Long Lasting Heat, Safe Natural Odorless Air Activated Heat Packs for Hands, Toes and Body - TSA Approved

Functions perfectly. Pocket size packet kept my hands warm on a 42 day voyage in the high Arctic retracing the route of the lost Franklin Expedition in search of the Northwest Passage. Perhaps if Capt. Sir John had more storage capacity aboard his ships, he and the crews on the Erebus and Terror might have achieved some pain relief and greater longevity. Alas, 'twas not to be. There. Hit all the "ideas" keyword prompts. One thing to add: if you pack too many of these things in your luggage (carry-on or checked), Canadian customs agents will be politely fraught and spend considerable time carrying on and jabbering amongst themselves to decide what to do about all this, then. In my case, and this is true, the agents decided to allow exactly half the number of handwarmers I had been carrying. The rest were confiscated. And not just me. Several others in my group had wildly varying numbers of the same item in their luggage, and despite the individual totals, they, too, were only allowed to retain half of whatever they brought. Cruel but fair.

These last well and have helped my husband make it through cold days at work. Great Bargain!

Works well stays hot for a long time was definitely clutch this winter. Great price on the box as well

it does NOT ever last 10 hours - more like 3-5 hours

Great deal and delivery on time

I got these for the homeless people that live in my town one of the best investments I need. I will be getting more before winter ends.

Came in double packs but I cut them apart to hand out to the homeless when it's cold.

Open the packet, shake it, and feel the warmth. I use them to keep me warm and also to help get some cold sensitive plants through a cold spell.