GRABBER WARMERS FWMLES Foot Warmer Insoles, Medium/Large Foot warmers are thin and comfortable They easily fit in your shoe or boot providing soothing heat Provides over 5 hours of continued warmth Air activated heating pad heats up instantly when package is opened Odorless, non toxic, environmentally friendly, non-combustable Toe warmers last 6 plus hours Great for snowmobiling, camping and outdoor events Sold 1 pair per pack