Categories
Categories
Reusable Hand Warmers
Price: $29.99
This set includes 4 HotSnapZ round hand warmers (4" diameter) and 4 of our pocket sized HotSnapZ hand warmers. (3" x 5")

How hot does a HotSnapZ heat pack get?
The chemistry inside HotSnapZ is a safe and self-regulating reaction. The maximum internal temperature reaches 128-130F and typically 115-120F at the surface during normal use. The temperatures that HotSnapZ operate at are considered to be non-burning when used as directed.

What is inside a HotSnapZ pack and how does it work?
• HotSnapZ reusable hand warmers and heating pads contain water, a small metal disc and sodium acetate, a safe food grade salt ingredient.
• The clicking of a disk within the pad triggers the precipitation of the sodium acetate crystals. When the crystals precipitate, it releases the energy that was required to initially dissolve it and stored in the pouch.
• The release of energy raises the temperature to a maximum temperature of 130F (54C). The process is theoretically repeatable indefinitely. HotSnapZ are a sodium acetate hand warmer.

Are the contents of HotSnapZ safe?
• Yes. The contents of each HotSnapZ are Safe, Non-Toxic and Non-Hazardous. (Water and Sodium Acetate)
ASIN: B004CV2YXE
Associated Gift Guides: Best Sellers, Science Nerds, World Travelers

The Smithsonian Institution has entered affiliate agreements with the companies listed in our holiday shop, and earns a fee for every purchase made from following any link from these gift guide pages and making a purchase on the affiliate site. This fee helps fund Smithsonian’s activities.

All products on the Smithsonian.com Store are sold through affiliates. All returns, defects, or inquiries about products should be directed to the affiliate. The Smithsonian is not responsible for and has no control over affiliate transactions. Please note that these vendors operate independently of the Smithsonian and may have their own privacy policies. When you visit their websites, you leave our Website and no longer will be subject to our privacy and security policies. The Smithsonian is not responsible for the privacy or security practices or the content of other sites, and such links are not intended to be an endorsement of those sites or their content.

More from Outdoors