Disposable Hand Warmers work up to 6 Hours!

They have these Special Features:

• Can be placed in your gloves or pockets for up to 6 hours of warmth
• Great for outdoor trekking as well as other cold-weather, outdoor activities
• Activates when removed from package & shaken
• Come 4 to a packet
• Size: 3''x4''. Weighs just 1 oz. 4 pack