The N-Ferno Hand Warmer packs are non-toxic and made with all-natural ingredients. Plus, they’re disposable and compact for easy use on the go. Packs are not reusable and should be disposed of after each use. Ideal for workers exposed to the elements while on the job in industries such as construction and mining. Plus, they provide much-needed warmth while hunting, fishing, skiing or enjoying other cold outdoor activities.
LONG LASTING HEAT - Hand warmer packs keep hands free from chill for up to 12 hours

• COMPACT - Small and low-profile to easily fit into gloves or jacket pockets
• SIMPLE & INSTANT ACTIVATION - All-natural ingredients begin to heat up as soon as you open the pack (no batteries required)
• GREAT FOR USE WITH THERMAL ACCESSORIES - Easily insert into built-in pockets in thermal accessories for added warmth
• WORKDAY TO WEEKEND - For cold-weather use on the job or during outdoor recreation like hunting and hiking
• NON-TOXIC - Made with all-natural ingredients
• AVAILABLE IN 40 OR 100 PACKS - Includes 40 or 100 individually sealed pairs of warmers