Reusable Heat Pack, Reusable Snap Heat Pack, On the Go Heat Pack Hand Wamers, Instant Hot Packs for Back, Neck, Joints, and Muscles

Gets hot, stays hot, easy to reuse -- Great as a spur of the moment gift or stocking stuffers. Love these reusable hand warmers. Super easy to use. Last about 30-40 minutes of good warmth.

Convenient and easy to use -- Last about 25/30 minutes of warmth, but very warm for the duration. It's also pretty fun to see the reaction and squish them around.

Easy to use and portable -- These packs work great. Simply snap the metal disc inside and the chemical reaction happens, and the fluid inside turns to a hot gel. Just need the gel and put it on the painful area.

Works great to keep hands warm -- They love these to keep whatever they need warm. So easy to reuse time and again. It's good for some aches and pains. It's such an amazing for reusable packs, since no reusable ones are pretty expensive for one time use!

Effective, neat, reliable -- These are very fun! They get surprisingly warm when they're first activated, and then cool off over the next half hour or so. They get hot when you boil them back to "reset" them, stay warm for about an hour after that. It's nice to be able to grab one when my hands are cold during the day or to take on walks in chilly weather!

Hot spots -- Great for travel and great to use in a towel for small dogs when you travel. Use in a towel to help keep warm when on the go.

Easy to use, lasts 30-40 minutes - -very warm, heats up immediately -easy to activate, easy to reset -squishy and fun to play with -great for period cramps and muscle pain

Cold and Click Activated Heat Packs (4 Pieces) - Cold Heat Therapy for Injuries, Sore Muscles, Stiffness, Aches, Pains

Fast heat, easy to use -- They are totally worth it still, and are easy to reuse and get very warm. They are a good size: they fit in women's jean back pockets

Last for 30 mins -- They feel really nice and work well to reduce cramp pain. Resetting them could be easier as you have to keep them elevated in the boiling water, so they don't stick to the bottom of the pan

Quick and easy to use -- A little boil when you are done, and they are ready to use again. It really helps ease pain. People love that it is reusable. Can't wait to use it for the winter when you take your kids to the snow park.

Instant warmth -- These are great to have, especially to have in your pockets during winter. They're also just really cool to watch when u pop the metal tab, just know your warmer isn't broken, u might have to pop it a few times to get the reaction going.

Perfect for Scuba diving! -- Heat my hands while scuba diving in a cold spring, and it is effective. These are great for on the go. They heat up very fast and get quite hot. The duration of heat is around 20-40 minutes

Quick heat -- To activate, you have to bend the metal plate backwards. Lasted about 20 minutes, but enough bring my body temperature backup. Can reuse forever. Very good specific point heat application. Also great for football games.

Can be used as a heating pad or hand warmers -- Great for treating sore spots and pain points from the gym or time of the month, (ladies). They are easy to use and are reusable.

Hot and Cold Gel Pack, Reusable Hand Warmers with Snap to Heat Metal Disc Technology for One Click Heating - Pain-Relieving

Treat them right and they'll treat you right

- Portable, no batteries, no extra parts. - Click the little metal washer floating in the contained liquid and watch the hand warmer turn solid and emit heat. - They put out about 30 minutes of heat. 15 minutes of that heat is hot, the other 15 is warm. Need more heatPack more. - Reusable! They need to be boiled to be reset. I put mine in a thin cloth bag in a pan filled with water over the stove top til the water boils for five minutes. Make sure all the crystals are completely liquified and that there's no cloudiness. - They can last for a couple of years if you treat them well. This means never storing them for too long in the activated/solid state. Keeping in the liquid state is best.

Love the idea, great invention -- These reusable heat pads are very useful when my hands get cold in the winter. These are great for on the go. People struggle with cramping, and gets frequent neck spasms. They get fairly warm/hot, and are pliable for a while. They do cool off within an hour.

Can be used multiple time -- After you activate the chemical reaction, the heat is instantaneous, and it gets very warm. The older is ALWAYS cold and has poor circulation. Use one at a time and switches between hands, or I snap two, and put one in each pocket to keep their fingers warm.