Brrrrr, cold hands or anywhere else in winter while on an expedition, hiking, in the city, or on the chairlift? The Thaw Large Hand Warmer provides 10 hours of natural warmth after opening! A small 45g pack to always keep in your backpack. Thaw large hand warmers are very popular in winter with people suffering from Raynaud's syndrome. How do they work? When exposed to oxygen in the air, the iron filings inside the pocket begin to oxidize, creating a rapid rusting process that in turn produces residual heat. The salt acts as a catalyst, while the carbon helps to disperse the heat evenly. Vermiculite acts as an insulator, preventing heat from dissipating too quickly.

Features of Thaw Large Warmers:

• Sold in packs of 4
• Provides 10 hours of heat up to 51°C
• Weight: 50 g
• Instructions for Use
• To use the hand warmer: open the sachet, shake it in the air for a few seconds, and insert it wherever you like: gloves, pockets, hold it in your hand, place it on your ears, etc.