HotHands H163760 Hand Warmer, Air Activated, Up to 10 hr, 15 min to 30 min, 3 1 2 in Lg, 40 PK 98381A634 Total Capacity 8 qt Color Total Capacity 8 qt Color Silver Function Fluid Control Spout Yes Flow Capacity 256 oz Application Fluid Control Cover No Includes Removable Filter 50 Grit Mesh Screen Fits Universal Mouth Shape Round Finish Galvanized Fluid Capacity 256 fl oz Equipping Your Employees with the Proper Lockout Tools and Warning Devices Can Save Lives Warmer Type Hand Warmer Activation Method Air Activated Heating Time Up to 10 hr Average Temperature 135 °F Number of Hand Warmers Included 40 Length 3 1 2 in Width 2 in Reusability Disposable For Use With Gloves Time to Reach Average Temperature 15 min to 30 min Country of Origin USA These hand warmers are worn inside gloves and mittens and give off heat that keep hands and fingers warm