HotHands Insole Foot Warmers (16 pairs) with 1 FREE SAMPLE Body & Hand Super Warmer Includes: 1 box Insole Warmer (16 Pairs) 1 Body & Hand Super Warmer Sample Hothands contain ingredients like iron, activated carbon and water Ready to Use Air-Activated, Each warmer provides up to 10 hours of heat Safe, Natural Heat. Made in USA