Heart & Pocket Reusable Hand Warmers - Buy 4 Get 4 FREE

They're ok. Warm. Useful.

I have Raynaud's and thought these would help with my on-foot commutes. Sometimes I need to walk 40-60 minutes in cooler weather to get around. They do get hot instantly-- just shy of "Oh no, I'm burning!" heat. Mine were effective for maybe 15-20 minutes at best, not quite the 30 minutes estimated on the website. By the half hour mark they're cold to lukewarm in sub-50F weather, even inside a hoodie pocket, so it's better to have multiple packs on you to crack when that happens. Easy enough to reactivate on the stovetop in boiling water, and they're great for soothing muscle pains or cramps at home. My cat likes having one under a blanket with him. This is my first time using a product like this. They're good in a pinch, but I might get an electric warmer next time.

Not long lasting / has debris inside

Was surprised and a little uncomfortable with the debris floating around inside the green rectangular ones. My daughters also found it gross. None of them stay warm for longer than 20-30 minutes which was disappointing, since I was expecting them to stay warm for close to an hour based on what I’d read online

I absolutely love this product and customer service

Beyond amazing will definitely buy again in the future