Air-activated
warming was developed many years ago
during WWI, we are told. But, they had to
use "buckets" of chemicals to achieve the
warming. Portability as we know it today,
couldn't occur until air-tight packaging
could be developed. Air "leaking in" and
activating the warming cycle pre-maturely
was a problem. But not today. Now,
HotHands has the best packaging in the
industry. HotHands has a shelf life of 4
years or more. Please keep your Walk-Winn
Plastic Co. Sales receipt for
replacement.
HotHands,
a division of HEATMAX, Inc., enjoys about
75% of the warmer market and is the most
recognizable name in the industry.