KS Heat Packs Hand Body & Feet Warmers Large Size (5" x 4") Stays Warm for 12+ Hours (10 Warmers with Each Order) Great for Menstrual Pain Relief

These are life saving for cold nights camping. They can be used to help with pain, but I keep a box of these with my camping gear as they are my favorite for keeping my family and friends warm at night. They really do stay HOT for 12 hours.I even took them on a trip to the UK since I knew it would be cold at night. Better than a hot water bottle when you don’t have an electric blanket, since they stay warm for so long. I even discovered that if I was able to warm one up on a radiator or hot water bottle the NEXT night, after it had already been cold for 12 hours, it warmed right back up and kept me warm for a second night.Yes these get almost too hot… but that’s fine. I’d rather have these slightly away from my body radiating out heat, than be cold. They are quite heavy, which is a drawback for flying if you have a luggage weight limit.Definitely get these.

I've bought about 10 boxes of this already for my wife. My wife has chronic back pain and tried several different kinds of heat packs in all price ranges over the years. I ran into this product by accident and ordered a box to give it a try. My wife was hooked the first time she tried this - just shake the pack several times, put it in the accompanying belt, and wrap it around the back. The heat lasted over 12 hours and was still warm. One caution is that you can get burn marks since it is hot so be sure to put it over the clothing and enough padding. Now whenever she is seating too long in the car or airplane, she will use it all the time.Strongly recommended if you have back pain. There was a delivery mishap a couple of times - the box is heavy and it was packed in plastic envelope that crushed the box, and another time, it didn't get delivered - I think it was torn apart during delivery. This order was delivered in a stronger outer box and no problem with delivery.Strongly recommend if you have back pain. Good price and excellent quality. Just be careful and don't get burned!

The media could not be loaded. I am a repeat customer. My TCM practitioner often uses moxibusion during a session so I thought this is such a great way to not only have a hot pack but also have some healing herbs. The pack can last an extremely long time especially if you store it properly or try out a few tricks. Beware they do get extremely hot! I actually fell asleep with one and it burnt my skin so be mindful while using. They are great for cramps, aches, and staying warm.

Love these. For bad period cramps these are a life saver! Be careful they get extremely hot and will burn you. They stay hot for almost 24 hours! Nothing compares. Easy to open and use no microwave needed. One time use.

Yes, these are more expensive than a typical disposable heat source; however, they last significantly longer and are significantly larger than the typical ones.These can actually BURN your skin so make sure you use them over thicker clothing or with the pouch they provide.I have used them for multiple different things, from injuries, playing in snow, cramps, foot warmth while camping, to sending in lunch boxes to keep food warm!They don’t smell and last forever if you smash/shake the lumps out occasionally when they form.I have, honestly, had a few packs maintain some heat for up to 18-hours…no exaggeration! (Not hot, but can still feel enough to use as a hand warmer)These are way too big and fat for use in shoes or boots, but they are our “go to” for extended outdoor events and for cramps or keeping muscles warmed up during outdoor athletic events.

These heat pads last a long time! It's great it comes with a belt to hold it. However, it is too long for me(I am size 4); the two pieces of velcro barely overlap. I saw that another reviewer wishes the belt to be longer ! So maybe two choices ? L for size 10 and up; S for size 8 and below ? Thank you!

Totally woth buying. They last hot for awhile.

Served the purpose. It runs very hot and was able to relieve my nerve pain. I'm very happy with the purchase