Portable heat in the palm of your hand! Air-activated Grabber Hand Warmers keep hands and fingers toasty for over 7 hours. No shaking or kneading required; just open the package and put the warmers in your glove or pocket for a few minutes to start the process. These hand warmers are a non-toxic, environmentally friendly, odorless heat source using ingredients that are non-combustible. Hand warmers are standard equipment for skiers, snowboarders, hunters, campers, hikers, birdwatchers or anyone who enjoys outdoor activities when the weather is cold. Hand Warmers are widely used as portable, long-lasting heat therapy. If you suffer from cold, sore hands and fingers as a result of Arthritis, Raynaud's, Lupus, Scleroderma, Sjￃﾶgren's, Myalgia or just poor circulation, Grabber Warmers provide soothing warmth. 40 packages per box; 2 warmers per package. Grabber Warmers are designed for 1 time, disposable use. Duration time: 7+ hours.