Get up to 10 hours of odorless, natural heat from 20 pairs of air-activated hand warmers Convenient and portable for keeping hands warm at outdoor events, winter activities, and everyday use Trusted HotHands brand warms hands, feet and bodies for over 20 years Activate by removing from package and shaking; reaches up to 135°F and lasts up to 10 hours Made in the USA; store in a cool, dry place away from direct sunlight