These natural ingredient foot-warmers are powered by Air. These foot warmers are easy to use and odorless. Each package contains Two Foot Warm-ups (foot warmers). The foot warmers contain natural ingredients of iron powder, water, salt, activated charcoal and vermiculite react together when exposed to air to produce long-lasting warmth in low-air environments. The foot warmers have a pouch that is soft and thin, and designed to fit comfortably into shoes or boots. The 2.25 inch X 4 inch Foot Warm-Up® is designed to operate on less oxygen than our other body warmers. This makes them perfect for the inside of shoes or boots. Comforting 110° heat for up to 6 hours.
How to use the foot warmers:
Remove the foot warmers from the outer protective wrapper and shake it to mix and activate the contents.
Slip the foot warmers inside your shoes or boots between the bottom of your shoes and bottom of socks.
Use of an insole between socked feet and the foot warmers is recommended for a milder warmth and protection against burns.
After use, dispose the foot warmers as you would other environmentally safe debris
10 Twin Packs