For those times mother nature is lashing down on your hobby and sport, this Mega Pack can offer your digits a warm place to retreat to when not in use. Grabber warmers are a non-toxic, odorless heat sources Uses all natural ingredients Non-combustible Air-activated An instant heat source Simply open the outer package and expose the packet to air Grabber warmers are pre-mixed so no shaking is necessary For best results, use warmers in an enclosed area with air such as a pocket, glove, shoe or boot 7+ hours of heat 10-Pairs