I found these rechargeable hand warmers on sale for $18.99 on Amazon. You'll score two devices in this pack that lasts up to 12 hours on a full charge.
If you need to replace an item after you receive it, Amazon's return policy is flexible and gives you 30 days to send it in. Keep in mind that some products have different return requirements, and in some cases, items that are opened or used may only be eligible for a partial refund.
Amazon has a ton of products, and it can get a little overwhelming. Browse these Amazon bestsellers to make your search a little easier. Just act quickly on some of these deals because they're selling fast.